PEPeerTransportProtocol.java

package org.gudy.azureus2.core3.peer.impl.transport;

///*
// * File    : PEPeerTransportProtocol.java
// * Created : 22-Oct-2003
// * By      : stuff
// *
// * Azureus - a Java Bittorrent client
// *
// * This program is free software; you can redistribute it and/or modify
// * it under the terms of the GNU General Public License as published by
// * the Free Software Foundation; either version 2 of the License.
// *
// * This program is distributed in the hope that it will be useful,
// * but WITHOUT ANY WARRANTY; without even the implied warranty of
// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// * GNU General Public License for more details ( see the LICENSE file ).
// *
// * You should have received a copy of the GNU General Public License
// * along with this program; if not, write to the Free Software
// * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
// */
//package org.gudy.azureus2.core3.peer.impl.transport;
//
//
//import java.net.InetAddress;
//import java.net.InetSocketAddress;
//import java.nio.ByteBuffer;
//import java.util.*;
//
//import org.gudy.azureus2.core3.config.COConfigurationManager;
//import org.gudy.azureus2.core3.config.ParameterListener;
//import org.gudy.azureus2.core3.disk.DiskManager;
//import org.gudy.azureus2.core3.disk.DiskManagerPiece;
//import org.gudy.azureus2.core3.disk.DiskManagerReadRequest;
//import org.gudy.azureus2.core3.logging.*;
//import org.gudy.azureus2.core3.peer.*;
//import org.gudy.azureus2.core3.peer.impl.PEPeerControl;
//import org.gudy.azureus2.core3.peer.impl.PEPeerTransport;
//import org.gudy.azureus2.core3.peer.impl.PEPeerTransportFactory;
//import org.gudy.azureus2.core3.peer.util.PeerIdentityDataID;
//import org.gudy.azureus2.core3.peer.util.PeerIdentityManager;
//import org.gudy.azureus2.core3.peer.util.PeerUtils;
//import org.gudy.azureus2.core3.util.*;
//import org.gudy.azureus2.plugins.dht.mainline.MainlineDHTProvider;
//import org.gudy.azureus2.plugins.network.Connection;
//import org.gudy.azureus2.plugins.peers.Peer;
//import org.gudy.azureus2.pluginsimpl.local.network.ConnectionImpl;
//
//import com.aelitis.azureus.core.impl.AzureusCoreImpl;
//import com.aelitis.azureus.core.networkmanager.*;
//import com.aelitis.azureus.core.networkmanager.admin.NetworkAdmin;
//import com.aelitis.azureus.core.networkmanager.impl.tcp.ProtocolEndpointTCP;
//import com.aelitis.azureus.core.networkmanager.impl.tcp.TCPNetworkManager;
//import com.aelitis.azureus.core.networkmanager.impl.udp.ProtocolEndpointUDP;
//import com.aelitis.azureus.core.networkmanager.impl.udp.UDPNetworkManager;
//import com.aelitis.azureus.core.peermanager.messaging.Message;
//import com.aelitis.azureus.core.peermanager.messaging.MessageManager;
//import com.aelitis.azureus.core.peermanager.messaging.azureus.*;
//import com.aelitis.azureus.core.peermanager.messaging.bittorrent.*;
//import com.aelitis.azureus.core.peermanager.messaging.bittorrent.ltep.*;
//import com.aelitis.azureus.core.peermanager.peerdb.PeerExchangerItem;
//import com.aelitis.azureus.core.peermanager.peerdb.PeerItem;
//import com.aelitis.azureus.core.peermanager.peerdb.PeerItemFactory;
//import com.aelitis.azureus.core.peermanager.piecepicker.PiecePicker;
//import com.aelitis.azureus.core.peermanager.piecepicker.util.BitFlags;
//import com.aelitis.azureus.core.peermanager.utils.*;
//
//
//public class
//PEPeerTransportProtocol
//extends LogRelation
//implements PEPeerTransport
//{
//	protected final static LogIDs LOGID = LogIDs.PEER;
//
//	private volatile int	_lastPiece =-1;		//last piece that was requested from this peer (mostly to try to request from same one)
//
//	protected final PEPeerControl 	manager;
//	protected final DiskManager		diskManager;
//	protected final PiecePicker		piecePicker;
//
//	protected final int		nbPieces;
//
//	private final String			peer_source;
//	private byte[] peer_id;
//	private final String ip;
//	protected String ip_resolved;
//	private IPToHostNameResolverRequest	ip_resolver_request;
//
//	private int port;
//
//	private PeerItem peer_item_identity;
//	private int tcp_listen_port = 0;
//	private int udp_listen_port = 0;
//	private int udp_non_data_port = 0;
//	// if the peer announces an ipv6 address
//	private InetAddress alternativeAddress;
//
//	private byte	crypto_level;
//
//	protected PEPeerStats peer_stats;
//
//	private final ArrayList requested = new ArrayList();
//	private final AEMonitor	requested_mon = new AEMonitor( "PEPeerTransportProtocol:Req" );
//
//	private Map data;
//
//	private long lastNeededUndonePieceChange;
//
//	protected boolean choked_by_other_peer = true;
//	/** total time the other peer has unchoked us while not snubbed */
//	protected long unchokedTimeTotal;
//	/** the time at which the other peer last unchoked us when not snubbed */
//	protected long unchokedTime;
//	protected boolean choking_other_peer = true;
//	private boolean interested_in_other_peer = false;
//	private boolean other_peer_interested_in_me = false;
//	private long snubbed =0;
//
//	/** lazy allocation; null until needed */
//	private volatile BitFlags	peerHavePieces =null;
//	private volatile boolean	availabilityAdded =false;
//	private volatile boolean	received_bitfield;
//
//	private boolean handshake_sent;
//
//	private boolean seeding = false;
//
//	private static final byte RELATIVE_SEEDING_NONE = 0x00;
//	// indicates that the peer told us that he's uploading only
//	private static final byte RELATIVE_SEEDING_UPLOAD_ONLY_INDICATED = 0x01;
//	// peer is not useful to us
//	private static final byte RELATIVE_SEEDING_UPLOAD_ONLY_SEED = 0x02;
//	private byte relativeSeeding = RELATIVE_SEEDING_NONE;
//
//	private final boolean incoming;
//
//	protected volatile boolean closing = false;
//	private volatile int current_peer_state;
//
//	protected NetworkConnection connection;
//	private OutgoingBTPieceMessageHandler outgoing_piece_message_handler;
//	private OutgoingBTHaveMessageAggregator outgoing_have_message_aggregator;
//	private Connection	plugin_connection;
//
//	private boolean identityAdded = false;  //needed so we don't remove id's in closeAll() on duplicate connection attempts
//
//	protected int connection_state = PEPeerTransport.CONNECTION_PENDING;
//
//	private String client = ""; // Client name to show to user.
//	private String client_peer_id = ""; // Client name derived from the peer ID.
//	private String client_handshake = ""; // Client name derived from the handshake.
//	private String client_handshake_version = ""; // Client version derived from the handshake.
//
//	//When superSeeding, number of unique piece announced
//	private int uniquePiece = -1;
//
//	//When downloading a piece in exclusivity mode the piece number being downloaded
//	private int reservedPiece = -1;
//
//	//Spread time (0 secs , fake default)
//	private int spreadTimeHint = 0 * 1000;
//
//	protected long last_message_sent_time = 0;
//	protected long last_message_received_time = 0;
//	protected long last_data_message_received_time = -1;
//	protected long last_good_data_time =-1;			// time data written to disk was recieved
//	protected long last_data_message_sent_time = -1;
//
//	private long connection_established_time = 0;
//
//	private int consecutive_no_request_count;
//
//	private int messaging_mode = MESSAGING_BT_ONLY;
//	private Message[] supported_messages = null;
//	private byte	other_peer_bitfield_version		= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_cancel_version		= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_choke_version		= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_handshake_version	= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_bt_have_version		= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_az_have_version		= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_interested_version	= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_keep_alive_version	= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_pex_version			= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_piece_version		= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_unchoke_version		= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_uninterested_version	= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_request_version		= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte  	other_peer_bt_lt_ext_version    = BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_az_request_hint_version	= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//	private byte	other_peer_az_bad_piece_version		= BTMessageFactory.MESSAGE_VERSION_INITIAL;
//
//	private boolean ut_pex_enabled = false;
//	private boolean ml_dht_enabled = false;
//
//	private final AEMonitor closing_mon	= new AEMonitor( "PEPeerTransportProtocol:closing" );
//	private final AEMonitor general_mon  	= new AEMonitor( "PEPeerTransportProtocol:data" );
//
//	private byte[] handshake_reserved_bytes = null;
//
//	private LinkedHashMap recent_outgoing_requests;
//	private AEMonitor	recent_outgoing_requests_mon;
//
//	private boolean has_received_initial_pex = false;
//
//	private static final boolean SHOW_DISCARD_RATE_STATS;
//	static {
//		final String	prop = System.getProperty( "show.discard.rate.stats" );
//		SHOW_DISCARD_RATE_STATS = prop != null && prop.equals( "1" );
//	}
//
//	private static int requests_discarded = 0;
//	private static int requests_discarded_endgame = 0;
//	private static int requests_recovered = 0;
//	private static int requests_completed = 0;
//
//	private static final int REQUEST_HINT_MAX_LIFE	= PiecePicker.REQUEST_HINT_MAX_LIFE + 30*1000;
//
//	private int[]	request_hint;
//
//	private List peer_listeners_cow;
//	private final AEMonitor	peer_listeners_mon = new AEMonitor( "PEPeerTransportProtocol:PL" );
//
//
//	//certain Optimum Online networks block peer seeding via "complete" bitfield message filtering
//	//lazy mode makes sure we never send a complete (seed) bitfield
//	protected static boolean ENABLE_LAZY_BITFIELD;
//
//	private boolean priority_connection;
//
//	private static final class DisconnectedTransportQueue extends LinkedHashMap
//	{
//		public DisconnectedTransportQueue()
//		{
//			super(20,0.75F);
//		}
//
//		private static final long MAX_CACHE_AGE = 2*60*1000;
//
//		// remove all elements older than 2 minutes until we hit the 20 again
//
//		private void performCleaning() {
//			if(size() > 20)
//			{
//				Iterator it = values().iterator();
//
//				long now = SystemTime.getMonotonousTime();
//
//				while(it.hasNext() && size() > 20)
//				{
//					QueueEntry eldest = (QueueEntry)it.next();
//					if( now - eldest.addTime > MAX_CACHE_AGE){
//						it.remove();
//					}else{
//						break;
//					}
//				}
//			}
//		}
//
//		private static final class QueueEntry {
//			public QueueEntry(PEPeerTransportProtocol trans)
//			{
//				transport = trans;
//			}
//
//			final PEPeerTransportProtocol transport;
//			final long addTime = SystemTime.getMonotonousTime();
//		}
//
//		// hardcap at 100
//		protected boolean removeEldestEntry(Map.Entry eldest) {
//			return size() > 100;
//		}
//
//		synchronized public Object put(HashWrapper key, PEPeerTransportProtocol value) {
//			performCleaning();
//			return super.put(key, new QueueEntry(value));
//		}
//
//		synchronized public PEPeerTransportProtocol remove(HashWrapper key) {
//			performCleaning();
//			QueueEntry entry = (QueueEntry)super.remove(key);
//			if(entry != null)
//				return entry.transport;
//			else
//				return null;
//		}
//
//	}
//
//	private static final DisconnectedTransportQueue recentlyDisconnected = new DisconnectedTransportQueue();
//
//	private static boolean 	fast_unchoke_new_peers;
//
//	private static final Random rnd = RandomUtils.SECURE_RANDOM;
//
//	private static final byte[] sessionSecret;
//
//	static {
//		rnd.setSeed(SystemTime.getHighPrecisionCounter());
//		sessionSecret = new byte[20];
//		rnd.nextBytes(sessionSecret);
//
//		COConfigurationManager.addAndFireParameterListeners(
//				new String[]{
//					"Use Lazy Bitfield",
//					"Peer.Fast.Initial.Unchoke.Enabled" },
//				new ParameterListener()
//				{
//					public final void
//					parameterChanged(
//							String ignore )
//					{
//						final String  prop = System.getProperty( "azureus.lazy.bitfield" );
//
//						ENABLE_LAZY_BITFIELD = prop != null && prop.equals( "1" );
//
//						ENABLE_LAZY_BITFIELD |= COConfigurationManager.getBooleanParameter( "Use Lazy Bitfield" );
//
//						fast_unchoke_new_peers 		= COConfigurationManager.getBooleanParameter( "Peer.Fast.Initial.Unchoke.Enabled" );
//					}
//				});
//	}
//
//
//
//	// reconnect stuff
//	private HashWrapper peerSessionID;
//	private HashWrapper mySessionID;
//
//	// allow reconnect if we've sent or recieved at least 1 piece over the current connection
//	private boolean allowReconnect;
//
//
//
//	private boolean is_optimistic_unchoke = false;
//
//	private PeerExchangerItem peer_exchange_item = null;
//	private boolean peer_exchange_supported = false;
//
//	protected PeerMessageLimiter message_limiter;
//
//	private boolean request_hint_supported;
//	private boolean bad_piece_supported;
//
//	private boolean have_aggregation_disabled;
//
//
//	//INCOMING
//	public
//	PEPeerTransportProtocol(
//		PEPeerControl 		_manager,
//		String 				_peer_source,
//		NetworkConnection	_connection,
//		Map					_initial_user_data )
//	{
//		manager = _manager;
//		peer_source		= _peer_source;
//		connection 		= _connection;
//		data			= _initial_user_data;
//
//		incoming = true;
//
//		diskManager =manager.getDiskManager();
//		piecePicker =manager.getPiecePicker();
//		nbPieces =diskManager.getNbPieces();
//
//
//		InetSocketAddress notional_address = _connection.getEndpoint().getNotionalAddress();
//
//		ip    = notional_address.getAddress().getHostAddress();
//		port  = notional_address.getPort();
//
//		peer_item_identity = PeerItemFactory.createPeerItem( ip, port, PeerItem.convertSourceID( _peer_source ), PeerItemFactory.HANDSHAKE_TYPE_PLAIN, 0, PeerItemFactory.CRYPTO_LEVEL_1, 0 );  //this will be recreated upon az handshake decode
//
//		plugin_connection = new ConnectionImpl(connection, incoming);
//
//		peer_stats = manager.createPeerStats( this );
//
//		changePeerState( PEPeer.CONNECTING );
//	}
//
//	public void
//	start()
//	{
//		// split out connection initiation from constructor so we can get access to the peer transport
//		// before message processing starts
//
//		if ( incoming ){
//
//			//"fake" a connect request to register our listener
//			connection.connect(
//				ProtocolEndpoint.CONNECT_PRIORITY_MEDIUM,
//				new NetworkConnection.ConnectionListener()
//				{
//					public final void
//					connectStarted() {
//						connection_state = PEPeerTransport.CONNECTION_CONNECTING;
//					}
//
//					public final void connectSuccess( ByteBuffer remaining_initial_data ) {  //will be called immediately
//						if (Logger.isEnabled())
//							Logger.log(new LogEvent(PEPeerTransportProtocol.this, LOGID,
//							"In: Established incoming connection"));
//
//						generateSessionId();
//
//						initializeConnection();
//
//						/*
//						 * Waiting until we've received the initiating-end's full handshake, before sending back our own,
//						 * really should be the "proper" behavior.  However, classic BT trackers running NAT checking will
//						 * only send the first 48 bytes (up to infohash) of the peer handshake, skipping peerid, which means
//						 * we'll never get their complete handshake, and thus never reply, which causes the NAT check to fail.
//						 * So, we need to send our handshake earlier, after we've verified the infohash.
//						 * NOTE:
//						 * This code makes the assumption that the inbound infohash has already been validated,
//						 * as we don't check their handshake fully before sending our own.
//						 */
//						sendBTHandshake();
//					}
//
//					public final void
//					connectFailure(
//						Throwable failure_msg )
//					{  //should never happen
//						Debug.out( "ERROR: incoming connect failure: ", failure_msg );
//						closeConnectionInternally( "ERROR: incoming connect failure [" + PEPeerTransportProtocol.this + "] : " + failure_msg.getMessage(), true, true );
//					}
//
//					public final void
//					exceptionThrown(
//							Throwable error )
//					{
//						if( error.getMessage() == null ) {
//							Debug.out( error );
//						}
//
//						closeConnectionInternally( "connection exception: " + error.getMessage(), false, true );
//					}
//
//					public String
//					getDescription()
//					{
//						return( getString());
//					}
//				});
//		}else{
//			// not pulled out startup from outbound connections yet...
//		}
//	}
//
//
//
//	//OUTGOING
//
//	public
//	PEPeerTransportProtocol(
//			PEPeerControl 	_manager,
//			String 			_peer_source,
//			String 			_ip,
//			int 			_tcp_port,
//			int 			_udp_port,
//			boolean			_use_tcp,
//			boolean 		_require_crypto_handshake,
//			byte			_crypto_level,
//			Map				_initial_user_data )
//	{
//
//		manager = _manager;
//		diskManager =manager.getDiskManager();
//		piecePicker =manager.getPiecePicker();
//		nbPieces =diskManager.getNbPieces();
//		lastNeededUndonePieceChange =Long.MIN_VALUE;
//
//		peer_source		= _peer_source;
//		ip    			= _ip;
//		port  			= _tcp_port;
//		tcp_listen_port = _tcp_port;
//		udp_listen_port	= _udp_port;
//		crypto_level	= _crypto_level;
//		data			= _initial_user_data;
//
//		if ( data != null ){
//
//			Boolean pc = (Boolean)data.get( Peer.PR_PRIORITY_CONNECTION );
//
//			if ( pc != null && pc.booleanValue()){
//
//				setPriorityConnection( true );
//			}
//		}
//
//		udp_non_data_port = UDPNetworkManager.getSingleton().getUDPNonDataListeningPortNumber();
//
//		peer_item_identity = PeerItemFactory.createPeerItem( ip, tcp_listen_port, PeerItem.convertSourceID( _peer_source ), PeerItemFactory.HANDSHAKE_TYPE_PLAIN, _udp_port, crypto_level, 0 );  //this will be recreated upon az handshake decode
//
//		incoming = false;
//
//		peer_stats = manager.createPeerStats( this );
//
//		if( port < 0 || port > 65535 ) {
//			closeConnectionInternally( "given remote port is invalid: " + port );
//			return;
//		}
//
//    	// either peer specific or global pref plus optional per-download level
//
//		boolean use_crypto =
//				_require_crypto_handshake ||
//    			NetworkManager.getCryptoRequired( manager.getAdapter().getCryptoLevel());
//
//		if( isLANLocal() )  use_crypto = false;  //dont bother with PHE for lan peers
//
//		InetSocketAddress	endpoint_address;
//		ProtocolEndpoint	pe;
//
//		if ( _use_tcp ){
//
//			endpoint_address = new InetSocketAddress( ip, tcp_listen_port );
//
//			pe = new ProtocolEndpointTCP( endpoint_address );
//
//		}else{
//
//			endpoint_address = new InetSocketAddress( ip, udp_listen_port );
//
//			pe = new ProtocolEndpointUDP( endpoint_address );
//		}
//
//		ConnectionEndpoint connection_endpoint	= new ConnectionEndpoint( endpoint_address );
//
//		connection_endpoint.addProtocol( pe );
//
//		connection =
//			NetworkManager.getSingleton().createConnection(
//					connection_endpoint,
//					new BTMessageEncoder(),
//					new BTMessageDecoder(),
//					use_crypto,
//					!_require_crypto_handshake,
//					manager.getSecrets( _crypto_level ));
//
//		plugin_connection = new ConnectionImpl(connection, incoming);
//
//		changePeerState( PEPeer.CONNECTING );
//
//		ByteBuffer	initial_outbound_data = null;
//
//		if ( use_crypto ){
//
//			BTHandshake handshake = new BTHandshake( manager.getHash(),
//					manager.getPeerId(),
//                    manager.isExtendedMessagingEnabled(), other_peer_handshake_version );
//
//			if (Logger.isEnabled())
//			    Logger.log(new LogEvent(this, LOGID,
//			    		"Sending encrypted handshake with reserved bytes: " +
//			    			ByteFormatter.nicePrint(handshake.getReserved(), false)));
//
//			DirectByteBuffer[] ddbs = handshake.getRawData();
//
//			int	handshake_len = 0;
//
//			for (int i=0;i<ddbs.length;i++){
//
//				handshake_len += ddbs[i].remaining( DirectByteBuffer.SS_PEER );
//			}
//
//			initial_outbound_data = ByteBuffer.allocate( handshake_len );
//
//			for (int i=0;i<ddbs.length;i++){
//
//				DirectByteBuffer	ddb = ddbs[i];
//
//				initial_outbound_data.put( ddb.getBuffer( DirectByteBuffer.SS_PEER ));
//
//				ddb.returnToPool();
//			}
//
//			initial_outbound_data.flip();
//
//			handshake_sent = true;
//		}
//
//		int	priority;
//
//		if ( manager.isSeeding()){
//
//			priority = ProtocolEndpoint.CONNECT_PRIORITY_LOW;
//
//		}else if ( manager.isRTA()){
//
//			if ( PeerClassifier.isAzureusIP( ip )){
//
//				priority = ProtocolEndpoint.CONNECT_PRIORITY_SUPER_HIGHEST;
//
//			}else{
//
//				priority = ProtocolEndpoint.CONNECT_PRIORITY_HIGHEST;
//			}
//		}else if ( PeerClassifier.isAzureusIP( ip )){
//
//			priority = ProtocolEndpoint.CONNECT_PRIORITY_HIGHEST;
//
//		}else{
//
//			priority = ProtocolEndpoint.CONNECT_PRIORITY_MEDIUM;
//		}
//
//			// give plugin peers some priority as they're being injected for a good reason
//
//		if ( peer_source == PEPeerSource.PS_PLUGIN ){
//
//			if ( priority > ProtocolEndpoint.CONNECT_PRIORITY_HIGH ){
//
//				priority = ProtocolEndpoint.CONNECT_PRIORITY_HIGH;
//			}
//		}
//
//		connection.connect(
//				initial_outbound_data,
//				priority,
//				new NetworkConnection.ConnectionListener()
//				{
//					private boolean	connect_ok;
//
//					public final void
//					connectStarted()
//					{
//						connection_state = PEPeerTransport.CONNECTION_CONNECTING;
//					}
//
//					public final void
//					connectSuccess(
//						ByteBuffer remaining_initial_data )
//					{
//						connect_ok = true;
//
//						if( closing ) {
//							//Debug.out( "PEPeerTransportProtocol::connectSuccess() called when closing." );
//							return;
//						}
//
//						generateSessionId();
//
//						if (Logger.isEnabled())
//							Logger.log(new LogEvent(PEPeerTransportProtocol.this, LOGID,
//									"Out: Established outgoing connection"));
//
//						initializeConnection();
//
//					    if ( remaining_initial_data != null && remaining_initial_data.remaining() > 0){
//
//				    		// queue as a *raw* message as already encoded
//
//					    	connection.getOutgoingMessageQueue().addMessage(
//								new BTRawMessage( new DirectByteBuffer( remaining_initial_data )), false );
//					    }
//
//						sendBTHandshake();
//					}
//
//					public final void
//					connectFailure(
//						Throwable failure_msg )
//					{
//						closeConnectionInternally( "failed to establish outgoing connection: " + failure_msg.getMessage(), true, true );
//					}
//
//					public final void
//					exceptionThrown(
//						Throwable error )
//					{
//						if( error.getMessage() == null ) {
//							Debug.out( "error.getMessage() == null", error );
//						}
//
//						closeConnectionInternally( "connection exception: " + error.getMessage(), !connect_ok, true );
//					}
//
//					public String
//					getDescription()
//					{
//						return( getString());
//					}
//				});
//
//		if (Logger.isEnabled())
//			Logger.log(new LogEvent(this, LOGID,
//			"Out: Creating outgoing connection"));
//	}
//
//
//
//
//	protected void initializeConnection() {
//		if( closing )  return;
//
//		recent_outgoing_requests = new LinkedHashMap( 16, .75F, true ) {
//			public final boolean removeEldestEntry(Map.Entry eldest) {
//				return size() > 16;
//			}
//		};
//		recent_outgoing_requests_mon  = new AEMonitor( "PEPeerTransportProtocol:ROR" );
//
//		message_limiter = new PeerMessageLimiter();
//
//		/*
//		//link in outgoing piece handler
//		outgoing_piece_message_handler =
//			new OutgoingBTPieceMessageHandler(
//					this,
//					connection.getOutgoingMessageQueue(),
//					new OutgoingBTPieceMessageHandlerAdapter()
//					{
//						public void
//						diskRequestCompleted(
//								long bytes)
//						{
//							peer_stats.diskReadComplete( bytes );
//						}
//    			},
//    			other_peer_piece_version);*/
//
//		//link in outgoing have message aggregator
//		outgoing_have_message_aggregator = new OutgoingBTHaveMessageAggregator( connection.getOutgoingMessageQueue(), other_peer_bt_have_version, other_peer_az_have_version );
//
//		connection_established_time = SystemTime.getCurrentTime();
//
//		connection_state = PEPeerTransport.CONNECTION_WAITING_FOR_HANDSHAKE;
//		changePeerState( PEPeer.HANDSHAKING );
//
//		registerForMessageHandling();
//	}
//
//
//
//
//
//	public String
//	getPeerSource()
//	{
//		return( peer_source );
//	}
//
//
//
//	/**
//	 * Close the peer connection from within the PEPeerTransport object.
//	 * @param reason
//	 */
//	protected void closeConnectionInternally( String reason, boolean connect_failed, boolean network_failure ) {
//		performClose( reason, connect_failed, false, network_failure );
//	}
//
//	protected void closeConnectionInternally( String reason ) {
//		performClose( reason, false, false, false );
//	}
//
//
//	/**
//	 * Close the peer connection from the PEPeerControl manager side.
//	 * NOTE: This method assumes PEPeerControl already knows about the close.
//	 * This method is inteded to be only invoked by select administrative methods.
//	 * You probably should not invoke this directly.
//	 */
//	public void closeConnection( String reason ) {
//		performClose( reason, false, true, false );
//	}
//
//
//	private void performClose( String reason, boolean connect_failed, boolean externally_closed, boolean network_failure )
//	{
//		try{
//			closing_mon.enter();
//
//			if( closing )
//				return;
//			closing = true;
//
//			// immediatly lose interest in peer
//			interested_in_other_peer =false;
//			lastNeededUndonePieceChange =Long.MAX_VALUE;
//
//			if (isSnubbed())
//				manager.decNbPeersSnubbed();
//
//			if( identityAdded ) {  //remove identity
//				if( peer_id != null )
//					PeerIdentityManager.removeIdentity( manager.getPeerIdentityDataID(), peer_id, getPort());
//				else
//					Debug.out( "PeerIdentity added but peer_id == null !!!" );
//				identityAdded	= false;
//			}
//
//			changePeerState( PEPeer.CLOSING );
//
//		}finally{
//			closing_mon.exit();
//		}
//
//		//cancel any pending requests (on the manager side)
//		cancelRequests();
//
//		if( outgoing_have_message_aggregator != null ) {
//			outgoing_have_message_aggregator.destroy();
//		}
//
//		if( peer_exchange_item != null ) {
//			peer_exchange_item.destroy();
//		}
//
//		if( outgoing_piece_message_handler != null ) {
//			outgoing_piece_message_handler.destroy();
//		}
//
//		if( connection != null ) {  //can be null if close is called within ::<init>::, like when the given port is invalid
//			connection.close();
//		}
//
//		if ( ip_resolver_request != null ){
//			ip_resolver_request.cancel();
//		}
//
//		removeAvailability();
//
//		changePeerState( PEPeer.DISCONNECTED );
//
//		if (Logger.isEnabled())
//			Logger.log(new LogEvent(this, LOGID, "Peer connection closed: " + reason));
//
//		if( !externally_closed ) {  //if closed internally, notify manager, otherwise we assume it already knows
//			manager.peerConnectionClosed( this, connect_failed, network_failure );
//		}
//
//		setPriorityConnection( false );
//		/*
//		 *  all managed references should have been removed by now
//		 *  add to recently disconnected list and null some stuff to make the object lighter
//		 */
//
//		outgoing_have_message_aggregator = null;
//		peer_exchange_item = null;
//		outgoing_piece_message_handler = null;
//		plugin_connection = null;
//
//		// only save stats if it's worth doing so; ignore rapid connect-disconnects
//		if (peer_stats.getTotalDataBytesReceived() > 0 || peer_stats.getTotalDataBytesSent() > 0 || SystemTime.getCurrentTime() - connection_established_time > 30 * 1000)
//			recentlyDisconnected.put(mySessionID, this);
//	}
//
//	public PEPeerTransport reconnect(boolean tryUDP, boolean tryIPv6) {
//
//		boolean use_tcp = isTCP() && !(tryUDP && getUDPListenPort() > 0);
//
//		if ((use_tcp && getTCPListenPort() > 0) || (!use_tcp && getUDPListenPort() > 0))
//		{
//			boolean use_crypto = getPeerItemIdentity().getHandshakeType() == PeerItemFactory.HANDSHAKE_TYPE_CRYPTO;
//
//			PEPeerTransport new_conn =
//				PEPeerTransportFactory.createTransport(
//						manager,
//						getPeerSource(),
//						tryIPv6 && alternativeAddress != null ? alternativeAddress.getHostAddress() : getIp(),
//						getTCPListenPort(),
//						getUDPListenPort(),
//						use_tcp,
//						use_crypto,
//						crypto_level,
//						null );
//
//			// log to both relations
//			Logger.log(new LogEvent(new Object[] {this, new_conn},LOGID,"attempting to reconnect, creating new connection"));
//			if (new_conn instanceof PEPeerTransportProtocol)
//			{
//				PEPeerTransportProtocol pt = (PEPeerTransportProtocol) new_conn;
//				pt.checkForReconnect(mySessionID);
//				// carry over the alt address in case the reconnect fails and we try again with ipv6
//				pt.alternativeAddress = alternativeAddress;
//
//			}
//
//			manager.addPeer( new_conn );
//
//			return (new_conn);
//		} else
//		{
//			return (null);
//		}
//	}
//
//	/* (non-Javadoc)
//	 * @see org.gudy.azureus2.core3.peer.impl.PEPeerTransport#isSafeForReconnect()
//	 */
//	public boolean isSafeForReconnect() {
//		return allowReconnect;
//	}
//
//
//	private void checkForReconnect(HashWrapper oldID)
//	{
//		PEPeerTransportProtocol oldTransport = recentlyDisconnected.remove(oldID);
//
//		if(oldTransport != null)
//		{
//			Logger.log(new LogEvent(this,LOGID,LogAlert.AT_INFORMATION,"reassociating stats from "+oldTransport+" with this connection"));
//			peerSessionID = oldTransport.peerSessionID;
//			peer_stats = oldTransport.peer_stats;
//			peer_stats.setPeer(this);
//			unchokedTimeTotal += oldTransport.unchokedTimeTotal;
//			unchokedTime += oldTransport.unchokedTime;
//			setSnubbed(oldTransport.isSnubbed());
//			snubbed = oldTransport.snubbed;
//			last_good_data_time = oldTransport.last_good_data_time;
//		}
//	}
//
//	private void generateSessionId()
//	{
//		SHA1Hasher sha1 = new SHA1Hasher();
//		sha1.update(sessionSecret);
//		sha1.update(manager.getHash());
//		sha1.update(getIp().getBytes());
//		mySessionID = sha1.getHash();
//		checkForReconnect(mySessionID);
//	}
//
//	private void addAvailability()
//	{
//		if (!availabilityAdded &&!closing &&peerHavePieces !=null &¤t_peer_state ==PEPeer.TRANSFERING)
//		{
//			final List peer_listeners_ref =peer_listeners_cow;
//			if (peer_listeners_ref !=null)
//			{
//				for (int i =0; i <peer_listeners_ref.size(); i++)
//				{
//					final PEPeerListener peerListener =(PEPeerListener) peer_listeners_ref.get(i);
//					peerListener.addAvailability(this, peerHavePieces);
//				}
//				availabilityAdded =true;
//			}
//		}
//	}
//
//	private void removeAvailability()
//	{
//		if (availabilityAdded &&peerHavePieces !=null)
//		{
//			final List peer_listeners_ref =peer_listeners_cow;
//			if (peer_listeners_ref !=null)
//			{
//				for (int i =0; i <peer_listeners_ref.size(); i++)
//				{
//					final PEPeerListener peerListener =(PEPeerListener) peer_listeners_ref.get(i);
//					peerListener.removeAvailability(this, peerHavePieces);
//				}
//			}
//			availabilityAdded =false;
//		}
//		peerHavePieces =null;
//	}
//
//
//
//	protected void sendBTHandshake() {
//		if ( !handshake_sent ){
//			BTHandshake handshake =	new BTHandshake( manager.getHash(),
//					manager.getPeerId(),
//                    manager.isExtendedMessagingEnabled(), other_peer_handshake_version );
//
//			if (Logger.isEnabled())
//			    Logger.log(new LogEvent(this, LOGID,
//			    		"Sending handshake with reserved bytes: " +
//			    			ByteFormatter.nicePrint(handshake.getReserved(), false)));
//
//			/**
//			 * AMC's hopefully temporary debug code - some Az clients out there appear to be be
//			 * AZMP neutered and communicating using LTEP instead. Let's bug the user if
//			 * this happens so that I know about it.
//			 */
//			if (Constants.isCVSVersion()) {
//				byte[] reserved = handshake.getReserved();
//				boolean supports_azmp = (reserved[0] & 128) == 128;
//				boolean supports_ltep = (reserved[5] & 16) == 16;
//				if (supports_ltep && !supports_azmp) {
//					Logger.log(new LogAlert(this, LogAlert.UNREPEATABLE, LogAlert.AT_ERROR,
//						"AZMP support has failed in Azureus, please report this in the " +
//						"<a href=\"http://forum.vuze.com/forum.jspa?forumID=4\">CVS bug report forum</a>.\n" +
//						"Debug data: " + ByteFormatter.nicePrint(reserved)
//					));
//				}
//			}
//
//			connection.getOutgoingMessageQueue().addMessage(handshake, false);
//		}
//	}
//
//	// We could do this in a more automated way in future, but hardcoded is simple and quick,
//	// so we'll do that instead. :)
//	static Map lt_ext_map = UTPeerExchange.ENABLED ? Collections.singletonMap("ut_pex", new Integer(1) ) : Collections.EMPTY_MAP;
//
//	private void sendLTHandshake() {
//		String client_name = Constants.AZUREUS_NAME + " " + Constants.AZUREUS_VERSION;
//		int localTcpPort = TCPNetworkManager.getSingleton().getTCPListeningPortNumber();
//		String tcpPortOverride = COConfigurationManager.getStringParameter("TCP.Listen.Port.Override");
//		try
//		{
//			localTcpPort = Integer.parseInt(tcpPortOverride);
//		} catch (NumberFormatException e)	{} // ignore as invalid input
//		boolean require_crypto = NetworkManager.getCryptoRequired( manager.getAdapter().getCryptoLevel());
//
//		Map data_dict = new HashMap();
//		data_dict.put("m", lt_ext_map);
//		data_dict.put("v", client_name);
//		data_dict.put("p", new Integer(localTcpPort));
//		data_dict.put("e", new Long(require_crypto ? 1L : 0L));
//		data_dict.put("upload_only", new Long(manager.isSeeding() && !ENABLE_LAZY_BITFIELD ? 1L : 0L));
//		InetAddress defaultV6 = NetworkAdmin.getSingleton().hasIPV6Potential(true) ? NetworkAdmin.getSingleton().getDefaultPublicAddressV6() : null;
//		if(defaultV6 != null)
//			data_dict.put("ipv6",defaultV6.getAddress());
//		LTHandshake lt_handshake = new LTHandshake(
//				data_dict, other_peer_bt_lt_ext_version
//		);
//		connection.getOutgoingMessageQueue().addMessage(lt_handshake, false);
//	}
//
//	private void sendAZHandshake() {
//		final Message[] avail_msgs = MessageManager.getSingleton().getRegisteredMessages();
//		final String[] avail_ids = new String[avail_msgs.length];
//		final byte[] avail_vers = new byte[avail_msgs.length];
//
//		for (int i = 0; i < avail_msgs.length; i++)
//		{
//			avail_ids[i] = avail_msgs[i].getID();
//			avail_vers[i] = avail_msgs[i].getVersion();
//		}
//
//		int local_tcp_port = TCPNetworkManager.getSingleton().getTCPListeningPortNumber();
//		int local_udp_port = UDPNetworkManager.getSingleton().getUDPListeningPortNumber();
//		int local_udp2_port = UDPNetworkManager.getSingleton().getUDPNonDataListeningPortNumber();
//		String tcpPortOverride = COConfigurationManager.getStringParameter("TCP.Listen.Port.Override");
//
//		try
//		{
//			local_tcp_port = Integer.parseInt(tcpPortOverride);
//		} catch (NumberFormatException e)
//		{} // ignore as invalid input
//
//		boolean require_crypto = NetworkManager.getCryptoRequired(manager.getAdapter().getCryptoLevel());
//
//		/*
//		 * we always send the Az-handshake immediately after the BT-handshake, before decoding the
//		 * other side's Az-handshake, thus there should be no peerSessionID unless this is a
//		 * reconnect
//		 */
//		if(peerSessionID != null)
//			Logger.log(new LogEvent(this, LOGID, LogEvent.LT_INFORMATION,"notifying peer of reconnect attempt"));
//
//		AZHandshake az_handshake = new AZHandshake(
//				AZPeerIdentityManager.getAZPeerIdentity(),
//				mySessionID,
//				peerSessionID,
//				Constants.AZUREUS_NAME,
//				Constants.AZUREUS_VERSION,
//				local_tcp_port,
//				local_udp_port,
//				local_udp2_port,
//				NetworkAdmin.getSingleton().hasIPV6Potential(true) ? NetworkAdmin.getSingleton().getDefaultPublicAddressV6() : null,
//				avail_ids,
//				avail_vers,
//				require_crypto ? AZHandshake.HANDSHAKE_TYPE_CRYPTO : AZHandshake.HANDSHAKE_TYPE_PLAIN,
//				other_peer_handshake_version,
//				manager.isSeeding() && !ENABLE_LAZY_BITFIELD);
//
//		connection.getOutgoingMessageQueue().addMessage( az_handshake, false );
//	}
//
//	public int getPeerState() {  return current_peer_state;  }
//
//	public boolean isDownloadPossible()
//	{
//		if (!closing &&!choked_by_other_peer)
//		{
//			if (lastNeededUndonePieceChange <piecePicker.getNeededUndonePieceChange())
//			{
//				checkInterested();
//				lastNeededUndonePieceChange =piecePicker.getNeededUndonePieceChange();
//			}
//			if (interested_in_other_peer &¤t_peer_state ==PEPeer.TRANSFERING)
//				return true;
//		}
//		return false;
//	}
//
//
//	public int getPercentDoneInThousandNotation()
//	{
//		long total_done = getBytesDownloaded();
//
//		return (int)((total_done *1000) /diskManager.getTotalLength());
//	}
//
//	public boolean transferAvailable() {
//		return (!choked_by_other_peer && interested_in_other_peer);
//	}
//
//
//
//	private void printRequestStats() {
//		if( SHOW_DISCARD_RATE_STATS ) {
//			final float discard_perc = (requests_discarded * 100F) / ((requests_completed + requests_recovered + requests_discarded) * 1F);
//			final float discard_perc_end = (requests_discarded_endgame * 100F) / ((requests_completed + requests_recovered + requests_discarded_endgame) * 1F);
//			final float recover_perc = (requests_recovered * 100F) / ((requests_recovered + requests_discarded) * 1F);
//			System.out.println( "c="+requests_completed+ " d="+requests_discarded+ " de="+requests_discarded_endgame+ " r="+requests_recovered+ " dp="+discard_perc+  "% dpe="+discard_perc_end+ "% rp="+recover_perc+ "%" );
//		}
//	}
//
//
//
//
//	/**
//	 * Checks if this peer is a seed or not by trivially checking if
//	 * thier Have bitflags exisits and shows a number of bits set equal
//	 * to the torrent # of pieces (and the torrent # of pieces is >0)
//	 */
//	private void checkSeed()
//	{
//		// seed implicitly means *something* to send (right?)
//		if (peerHavePieces !=null && nbPieces >0)
//			setSeed((peerHavePieces.nbSet ==nbPieces));
//		else
//			setSeed(false);
//
//		if(manager.isSeeding() && isSeed())
//			// peer is a real seed so it's also a relative seed
//			relativeSeeding |= RELATIVE_SEEDING_UPLOAD_ONLY_SEED;
//		else if(manager.isSeeding() && (relativeSeeding & RELATIVE_SEEDING_UPLOAD_ONLY_INDICATED) != 0)
//			// peer indicated upload-only, we're seeding so he's a relative seed
//			relativeSeeding |= RELATIVE_SEEDING_UPLOAD_ONLY_SEED;
//		else if(peerHavePieces !=null && nbPieces > 0)
//		{
//			int piecesDone = manager.getPiecePicker().getNbPiecesDone();
//			DiskManagerPiece[] dmPieces = diskManager.getPieces();
//			boolean couldBeSeed = true;
//
//			if(!manager.isSeeding() &&	(relativeSeeding & RELATIVE_SEEDING_UPLOAD_ONLY_INDICATED) != 0)
//			{ /*
//				 * peer indicated upload-only, check if we can use any of the data, otherwise flag
//				 * as relative seed. Useful to disconnect not-useful pseudo-seeds during downloading
//				 */
//				for(int i = peerHavePieces.start;i <= peerHavePieces.end;i++)
//				{
//					// relative seed if peer doesn't have the piece, we already have it or we don't need it
//					couldBeSeed &= !peerHavePieces.flags[i] || dmPieces[i].isDone() || !dmPieces[i].isNeeded();
//					if(!couldBeSeed)
//						break;
//				}
//			} else if(manager.isSeeding() && piecesDone <= peerHavePieces.nbSet)
//			{ // we're seeding, check if peer has all the data we have (and more), flag as relative seed if so
//				for(int i = peerHavePieces.start;i <= peerHavePieces.end;i++)
//				{
//					// relative seed if we don't have the piece or we have it and the peer has it too
//					couldBeSeed &= !(dmPieces[i].isDone()) || peerHavePieces.flags[i];
//					if(!couldBeSeed)
//						break;
//				}
//			} else
//				couldBeSeed = false;
//
//			if(couldBeSeed)
//				relativeSeeding |= RELATIVE_SEEDING_UPLOAD_ONLY_SEED;
//			else
//				relativeSeeding &= ~RELATIVE_SEEDING_UPLOAD_ONLY_SEED;
//		} else
//			relativeSeeding &= ~RELATIVE_SEEDING_UPLOAD_ONLY_SEED;
//
//	}
//
//
//	public DiskManagerReadRequest request(final int pieceNumber, final int pieceOffset, final int pieceLength) {
//		final DiskManagerReadRequest request =manager.createDiskManagerRequest(pieceNumber, pieceOffset, pieceLength);
//		if (current_peer_state != TRANSFERING) {
//			manager.requestCanceled(request);
//			return null;
//		}
//		boolean added =false;
//		try{
//			requested_mon.enter();
//
//			if (!requested.contains(request))
//			{
//				requested.add(request);
//				added =true;
//			}
//		}finally{
//
//			requested_mon.exit();
//		}
//
//		if (added)
//		{
//            connection.getOutgoingMessageQueue().addMessage( new BTRequest( pieceNumber, pieceOffset, pieceLength, other_peer_request_version ), false );
//			_lastPiece =pieceNumber;
//
//			try{
//				recent_outgoing_requests_mon.enter();
//
//				recent_outgoing_requests.put( request, null );
//			}finally{
//				recent_outgoing_requests_mon.exit();
//			}
//			return request;
//		}
//		return null;
//	}
//
//	public int
//	getRequestIndex(
//			DiskManagerReadRequest request )
//	{
//		try{
//			requested_mon.enter();
//
//			return( requested.indexOf( request ));
//
//		}finally{
//
//			requested_mon.exit();
//		}
//	}
//
//	public void sendCancel( DiskManagerReadRequest request ) {
//		if ( current_peer_state != TRANSFERING ) return;
//		if ( hasBeenRequested( request ) ) {
//			removeRequest( request );
//      connection.getOutgoingMessageQueue().addMessage( new BTCancel( request.getPieceNumber(), request.getOffset(), request.getLength(), other_peer_cancel_version ), false );
//		}
//	}
//
//
//	public void sendHave( int pieceNumber ) {
//		if ( current_peer_state != TRANSFERING || pieceNumber == manager.getHiddenPiece()) return;
//		//only force if the other peer doesn't have this piece and is not yet interested or we;ve disabled
//		// aggregation
//		final boolean force =!other_peer_interested_in_me &&peerHavePieces !=null &&!peerHavePieces.flags[pieceNumber];
//
//		outgoing_have_message_aggregator.queueHaveMessage( pieceNumber, force || have_aggregation_disabled );
//		checkInterested();
//	}
//
//
//	public void sendChoke() {
//		if ( current_peer_state != TRANSFERING ) return;
//
//		//System.out.println( "["+(System.currentTimeMillis()/1000)+"] " +connection + " choked");
//
//		connection.getOutgoingMessageQueue().addMessage( new BTChoke( other_peer_choke_version ), false );
//		choking_other_peer = true;
//		is_optimistic_unchoke = false;
//
//		if(outgoing_piece_message_handler != null)
//		{
//			outgoing_piece_message_handler.removeAllPieceRequests();
//			outgoing_piece_message_handler.destroy();
//			outgoing_piece_message_handler = null;
//		}
//	}
//
//
//	public void sendUnChoke() {
//		if ( current_peer_state != TRANSFERING ) return;
//
//		//System.out.println( "["+(System.currentTimeMillis()/1000)+"] " +connection + " unchoked");
//		if(outgoing_piece_message_handler == null)
//		{
//			outgoing_piece_message_handler = new OutgoingBTPieceMessageHandler(
//				this,
//				connection.getOutgoingMessageQueue(),
//				new OutgoingBTPieceMessageHandlerAdapter()
//				{
//					public void
//					diskRequestCompleted(
//							long bytes)
//					{
//						peer_stats.diskReadComplete( bytes );
//					}
//			},
//			other_peer_piece_version);
//		}
//
//
//
//		choking_other_peer = false;	// set this first as with pseudo peers we can effectively synchronously act
//		// on the unchoke advice and we don't want that borking with choked still set
//
//    connection.getOutgoingMessageQueue().addMessage( new BTUnchoke(other_peer_unchoke_version), false );
//	}
//
//
//	private void sendKeepAlive() {
//		if ( current_peer_state != TRANSFERING ) return;
//
//		if( outgoing_have_message_aggregator.hasPending() ) {
//			outgoing_have_message_aggregator.forceSendOfPending();
//		}
//		else {
//      connection.getOutgoingMessageQueue().addMessage( new BTKeepAlive(other_peer_keep_alive_version), false );
//		}
//	}
//
//	private void sendMainlineDHTPort() {
//		if (!this.ml_dht_enabled) {return;}
//		MainlineDHTProvider provider = getDHTProvider();
//		if (provider == null) {return;}
//		Message message = new BTDHTPort(provider.getDHTPort());
//		connection.getOutgoingMessageQueue().addMessage(message, false);
//	}
//
//
//
//	/**
//	 * Global checkInterested method.
//	 * Early-out scan of pieces to determine if the peer is interesting or not.
//	 * They're interesting if they have a piece that we Need and isn't Done
//	 */
//	public void checkInterested()
//	{
//		if (closing ||peerHavePieces ==null ||peerHavePieces.nbSet ==0)
//			return;
//
//		boolean is_interesting = false;
//		if (piecePicker.hasDownloadablePiece())
//		{   // there is a piece worth being interested in
//			if (!isSeed() && !isRelativeSeed())
//			{   // check individually if don't have all
//				for (int i =peerHavePieces.start; i <=peerHavePieces.end; i++ )
//				{
//					if (peerHavePieces.flags[i] && diskManager.isInteresting(i))
//					{
//						is_interesting = true;
//						break;
//					}
//				}
//			} else
//				is_interesting =true;
//		}
//
//		if (is_interesting &&!interested_in_other_peer)
//			connection.getOutgoingMessageQueue().addMessage(new BTInterested(other_peer_interested_version), false);
//		else if (!is_interesting &&interested_in_other_peer)
//			connection.getOutgoingMessageQueue().addMessage(new BTUninterested(other_peer_uninterested_version), false);
//
//		interested_in_other_peer = is_interesting;
//	}
//
//	/** @deprecated no longer used by CVS code
//	 * Checks if a particular piece makes us interested in the peer
//	 * @param pieceNumber the piece number that has been received
//	 */
//	/*
//	private void checkInterested(int pieceNumber)
//	{
//		if (closing)
//			return;
//
//		// Do we need this piece and it's not Done?
//		if (!interested_in_other_peer &&diskManager.isInteresting(pieceNumber))
//        {
//      connection.getOutgoingMessageQueue().addMessage( new BTInterested(), false );
//			interested_in_other_peer =true;
//  }
//	}
//	 */
//
//
//
//
//	/**
//	 * Private method to send the bitfield.
//	 */
//	private void sendBitField()
//	{
//		if (closing)
//			return;
//
//		//In case we're in super seed mode, we don't send our bitfield
//		if (manager.isSuperSeedMode())
//			return;
//
//		//create bitfield
//		final DirectByteBuffer buffer =DirectByteBufferPool.getBuffer(DirectByteBuffer.AL_MSG, (nbPieces +7) /8);
//		final DiskManagerPiece[] pieces =diskManager.getPieces();
//
//
//		int num_pieces = pieces.length;
//
//		HashSet	lazies 		= null;
//		int[]	lazy_haves	= null;
//
//		if (ENABLE_LAZY_BITFIELD)
//		{
//			int bits_in_first_byte = Math.min(num_pieces, 8);
//			int last_byte_start_bit = (num_pieces / 8) * 8;
//			int bits_in_last_byte = num_pieces - last_byte_start_bit;
//			if (bits_in_last_byte == 0)
//			{
//				bits_in_last_byte = 8;
//				last_byte_start_bit -= 8;
//			}
//			lazies = new HashSet();
//			// one bit from first byte
//			int first_byte_entry = rnd.nextInt(bits_in_first_byte);
//			if (pieces[first_byte_entry].isDone())
//			{
//				lazies.add(new MutableInteger(first_byte_entry));
//			}
//			// one bit from last byte
//			int last_byte_entry = last_byte_start_bit + rnd.nextInt(bits_in_last_byte);
//			if (pieces[last_byte_entry].isDone())
//			{
//				lazies.add(new MutableInteger(last_byte_entry));
//			}
//			// random others missing
//			int other_lazies = rnd.nextInt(16) + 4;
//			for (int i = 0; i < other_lazies; i++)
//			{
//				int random_entry = rnd.nextInt(num_pieces);
//				if (pieces[random_entry].isDone())
//				{
//					lazies.add(new MutableInteger(random_entry));
//				}
//			}
//			int num_lazy = lazies.size();
//			if (num_lazy == 0)
//			{
//				lazies = null;
//			} else
//			{
//				lazy_haves = new int[num_lazy];
//				Iterator it = lazies.iterator();
//				for (int i = 0; i < num_lazy; i++)
//				{
//					int lazy_have = ((MutableInteger) it.next()).getValue();
//					lazy_haves[i] = lazy_have;
//				}
//				if (num_lazy > 1)
//				{
//					for (int i = 0; i < num_lazy; i++)
//					{
//						int swap = rnd.nextInt(num_lazy);
//						if (swap != i)
//						{
//							int temp = lazy_haves[swap];
//							lazy_haves[swap] = lazy_haves[i];
//							lazy_haves[i] = temp;
//						}
//					}
//				}
//			}
//		}
//
//		int bToSend = 0;
//		int i = 0;
//
//		MutableInteger	mi = new MutableInteger(0);
//
//		int	hidden_piece = manager.getHiddenPiece();
//
//		for (; i <num_pieces; i++ ){
//
//			if ((i %8) ==0){
//				bToSend =0;
//			}
//
//			bToSend = bToSend << 1;
//
//			if (pieces[i].isDone() && i != hidden_piece ){
//
//				if ( lazies != null ){
//
//					mi.setValue(i);
//
//					if ( lazies.contains( mi )){
//
//						// System.out.println( "LazySet: " + getIp() + " -> " + i );
//
//					}else{
//						bToSend += 1;
//					}
//				}else{
//					bToSend += 1;
//				}
//			}
//
//			if ((i %8) ==7){
//				buffer.put(DirectByteBuffer.SS_BT, (byte) bToSend);
//		}
//		}
//
//		if ((i %8) !=0){
//
//			bToSend = bToSend << (8 - (i % 8));
//			buffer.put( DirectByteBuffer.SS_BT, (byte)bToSend );
//		}
//
//		buffer.flip( DirectByteBuffer.SS_BT );
//
//		connection.getOutgoingMessageQueue().addMessage(new BTBitfield(buffer, other_peer_bitfield_version ), false);
//
//		if ( lazy_haves != null ){
//
//			final int[]	f_lazy_haves = lazy_haves;
//
//			SimpleTimer.addEvent("LazyHaveSender", SystemTime.getCurrentTime() + 1000 + rnd.nextInt(2000), new TimerEventPerformer()
//			{
//				int	next_have	= 0;
//
//				public void perform(TimerEvent event) {
//					int lazy_have = f_lazy_haves[next_have++];
//					// System.out.println( "LazyDone: " + getIp() + " -> " +
//					// lazy_have );
//
//					if ( current_peer_state == TRANSFERING ){
//
//						connection.getOutgoingMessageQueue().addMessage(new BTHave(lazy_have, other_peer_bt_have_version), false);
//
//						if (next_have < f_lazy_haves.length && current_peer_state == TRANSFERING){
//
//							SimpleTimer.addEvent("LazyHaveSender", SystemTime.getCurrentTime() + rnd.nextInt(2000), this);
//						}
//					}
//				}
//			});
//		}
//
//	}
//
//
//	public byte[] getId() {  return peer_id;  }
//	public String getIp() {  return ip;  }
//	public InetAddress getAlternativeIPv6() { return alternativeAddress; }
//	public int getPort() {  return port;  }
//
//	public int getTCPListenPort() {  return tcp_listen_port;  }
//	public int getUDPListenPort() {  return udp_listen_port;  }
//	public int getUDPNonDataListenPort() { return( udp_non_data_port ); }
//
//
//	public String getClient() {  return client;  }
//
//	public boolean isIncoming() {  return incoming;  }
//
//
//	public boolean isOptimisticUnchoke() {  return is_optimistic_unchoke && !isChokedByMe();  }
//	public void setOptimisticUnchoke( boolean is_optimistic ) {  is_optimistic_unchoke = is_optimistic;  }
//
//
//	public PEPeerControl getControl() {  return manager;  }
//	public PEPeerManager getManager() {  return manager;  }
//	public PEPeerStats getStats() {  return peer_stats;  }
//
//	public int[]
//	           getPriorityOffsets()
//	{
//		// normal peer has no special priority requirements
//
//		return( null );
//	}
//
//	public boolean
//	requestAllocationStarts(
//			int[]	base_priorities )
//	{
//		return( false );
//	}
//
//	public void
//	requestAllocationComplete()
//	{
//	}
//
//	/**
//	 * @return null if no bitfield has been recieved yet
//	 * else returns BitFlags indicating what pieces the peer has
//	 */
//	public BitFlags getAvailable()
//	{
//		return peerHavePieces;
//	}
//	public boolean isPieceAvailable(int pieceNumber)
//	{
//		if (peerHavePieces !=null)
//			return peerHavePieces.flags[pieceNumber];
//		return false;
//	}
//
//	public boolean isChokingMe() {  return choked_by_other_peer;  }
//	public boolean isChokedByMe() {  return choking_other_peer;  }
//	/**
//	 * @return true if the peer is interesting to us
//	 */
//	public boolean isInteresting() {  return interested_in_other_peer;  }
//	/**
//	 * @return true if the peer is interested in what we're offering
//	 */
//	public boolean isInterested() {  return other_peer_interested_in_me;  }
//	public boolean isSeed() {  return seeding;  }
//	public boolean isRelativeSeed() { return (relativeSeeding & RELATIVE_SEEDING_UPLOAD_ONLY_SEED) != 0; }
//
//	private void
//	setSeed(
//			boolean	s )
//	{
//		if ( seeding != s ){
//
//			seeding	= s;
//
//			if ( peer_exchange_item != null && s){
//
//				peer_exchange_item.seedStatusChanged();
//			}
//		}
//	}
//
//	public boolean isSnubbed() {  return snubbed !=0;  }
//
//	public long getSnubbedTime()
//	{
//		if (snubbed ==0)
//			return 0;
//		final long now =SystemTime.getCurrentTime();
//		if (now <snubbed)
//			snubbed =now -26; // odds are ...
//		return now -snubbed;
//	}
//
//	public void setSnubbed(boolean b)
//	{
//		if (!closing)
//		{
//			final long now =SystemTime.getCurrentTime();
//			if (!b)
//			{
//				if (snubbed !=0)
//				{
//					snubbed =0;
//					manager.decNbPeersSnubbed();
//					if (!choked_by_other_peer)
//						unchokedTime =now;
//				}
//			} else if (snubbed ==0)
//			{
//				snubbed =now;
//				manager.incNbPeersSnubbed();
//				if (!choked_by_other_peer)
//				{
//					final long unchoked =now -unchokedTime;
//					if (unchoked >0)
//						unchokedTimeTotal +=unchoked;
//				}
//			}
//		}
//	}
//	public void setUploadHint(int spreadTime) {  spreadTimeHint = spreadTime;  }
//	public int getUploadHint() {  return spreadTimeHint;  }
//	public void setUniqueAnnounce(int _uniquePiece) {  uniquePiece = _uniquePiece;  }
//	public int getUniqueAnnounce() {  return uniquePiece;  }
//
//
//
//	public Object getData(String key) {
//
//		return( getUserData( key ));
//	}
//
//	public void
//	setData(String key, Object value)
//	{
//		setUserData( key, value );
//	}
//
//	/** To retreive arbitrary objects against a peer. */
//	public Object getUserData (Object key) {
//		try{
//			general_mon.enter();
//
//			if (data == null) return null;
//			return data.get(key);
//		}finally{
//
//			general_mon.exit();
//		}
//	}
//
//	/** To store arbitrary objects against a peer. */
//	public void setUserData (Object key, Object value) {
//		try{
//			general_mon.enter();
//
//			if (data == null) {
//				data = new LightHashMap();
//			}
//			if (value == null) {
//				if (data.containsKey(key)){
//					data.remove(key);
//					if ( data.size()==0 ){
//						data = null;
//					}
//				}
//			} else {
//				data.put(key, value);
//			}
//		}finally{
//
//			general_mon.exit();
//		}
//	}
//
//
//	public String
//	getIPHostName()
//	{
//		if ( ip_resolved == null ){
//
//			ip_resolved = ip;
//
//			ip_resolver_request = IPToHostNameResolver.addResolverRequest(
//					ip_resolved,
//					new IPToHostNameResolverListener()
//					{
//						public final void
//						IPResolutionComplete(
//								String		res,
//								boolean		ok )
//						{
//							ip_resolved	= res;
//						}
//					});
//		}
//
//		return( ip_resolved );
//	}
//
//
//
//	private void cancelRequests()
//	{
//		if (!closing) {   //cancel any unsent requests in the queue
//            final Message[] type ={new BTRequest(-1, -1, -1, other_peer_request_version)};
//			connection.getOutgoingMessageQueue().removeMessagesOfType(type, false);
//		}
//		if (requested !=null &&requested.size() >0) {
//			try{
//				requested_mon.enter();
//
//				if (!closing)
//				{   // may have unchoked us, gotten a request, then choked without filling it - snub them
//					// if they actually have data coming in, they'll be unsnubbed as soon as it writes
//					final long timeSinceGoodData =getTimeSinceGoodDataReceived();
//					if (timeSinceGoodData ==-1 ||timeSinceGoodData >60 *1000)
//						setSnubbed(true);
//				}
//				for (int i = requested.size() - 1; i >= 0; i--) {
//					final DiskManagerReadRequest request =(DiskManagerReadRequest) requested.remove(i);
//					manager.requestCanceled(request);
//				}
//			}finally{
//
//				requested_mon.exit();
//			}
//		}
//	}
//
//	public int
//	getMaxNbRequests()
//	{
//		return( -1 );
//	}
//
//	public int
//	getNbRequests() {
//		return requested.size();
//	}
//
//	/**
//	 *
//	 * @return	may be null for performance purposes
//	 */
//
//	public List
//	getExpiredRequests() {
//		List result = null;
//
//		// this is frequently called, hence we operate without a monitor and
//		// take the hit of possible exceptions due to concurrent list
//		// modification (only out-of-bounds can occur)
//
//		try{
//			for (int i =requested.size() -1; i >=0; i--)
//			{
//				final DiskManagerReadRequest request = (DiskManagerReadRequest) requested.get(i);
//
//				if (request.isExpired()){
//
//					if ( result == null ){
//
//						result = new ArrayList();
//					}
//
//					result.add(request);
//				}
//			}
//
//			return( result );
//
//		}catch(Throwable e ){
//
//			return result;
//		}
//	}
//
//
//	private boolean	hasBeenRequested( DiskManagerReadRequest request ) {
//		try{  requested_mon.enter();
//
//		return requested.contains( request );
//		}
//		finally{  requested_mon.exit();  }
//	}
//
//	/** @deprecated no longer used by CVS code
//	 */
//	protected void
//	addRequest(
//			DiskManagerReadRequest	request )
//	{
//		try{
//			requested_mon.enter();
//
//			requested.add(request);
//		}finally{
//
//			requested_mon.exit();
//		}
//		_lastPiece =request.getPieceNumber();
//	}
//
//	protected void
//	removeRequest(
//			DiskManagerReadRequest	request )
//	{
//		try{
//			requested_mon.enter();
//
//			requested.remove(request);
//		}finally{
//
//			requested_mon.exit();
//		}
//	    	final BTRequest msg = new BTRequest( request.getPieceNumber(), request.getOffset(), request.getLength(), other_peer_request_version );
//		connection.getOutgoingMessageQueue().removeMessage( msg, false );
//		msg.destroy();
//	}
//
//	private void
//	resetRequestsTime(final long now)
//	{
//		try{
//			requested_mon.enter();
//
//			final int requestedSize =requested.size();
//			for (int i =0; i <requestedSize; i++)
//			{
//				final DiskManagerReadRequest request =(DiskManagerReadRequest) requested.get(i);
//				if (request != null)
//					request.resetTime(now);
//			}
//		}finally{
//
//			requested_mon.exit();
//		}
//	}
//
//
//	public String toString() {
//		if( connection != null && connection.isConnected() ) {
//			return connection + (isTCP()?" [":"(UDP) [") + client+ "]";
//		}
//		return (isIncoming() ? "R: " : "L: ")+ ip + ":" + port + (isTCP()?" [":"(UDP) [") + client+ "]";
//	}
//
//	public String
//	getString()
//	{
//		return( toString());
//	}
//
//
//	public void doKeepAliveCheck() {
//		final long now =SystemTime.getCurrentTime();
//		final long wait_time =now -last_message_sent_time;
//
//		if( last_message_sent_time == 0 || wait_time < 0 ) {
//			last_message_sent_time =now; //don't send if brand new connection
//			return;
//		}
//
//		if( wait_time > 2*60*1000 ) {  //2min keep-alive timer
//			sendKeepAlive();
//			last_message_sent_time =now;  //not quite true, but we don't want to queue multiple keep-alives before the first is actually sent
//		}
//	}
//
//
//	public boolean doTimeoutChecks() {
//		//Timeouts for states PEPeerTransport.CONNECTION_PENDING and
//		//PEPeerTransport.CONNECTION_CONNECTING are handled by the ConnectDisconnectManager
//		//so we don't need to deal with them here.
//
//		final long now =SystemTime.getCurrentTime();
//		//make sure we time out stalled connections
//		if( connection_state == PEPeerTransport.CONNECTION_FULLY_ESTABLISHED ) {
//			if (last_message_received_time >now)
//				last_message_received_time =now;
//			if (last_data_message_received_time >now)
//				last_data_message_received_time =now;
//			if (now -last_message_received_time >5*60*1000
//					&&now -last_data_message_received_time >5*60*1000) { //5min timeout
//				// assume this is due to a network failure
//				// e.g. something that didn't close the TCP socket properly
//				// will attempt reconnect
//				closeConnectionInternally( "timed out while waiting for messages", false, true );
//				return true;
//			}
//		}
//		//ensure we dont get stuck in the handshaking phases
//		else if( connection_state == PEPeerTransport.CONNECTION_WAITING_FOR_HANDSHAKE ) {
//			if (connection_established_time >now)
//				connection_established_time =now;
//			else if (now - connection_established_time > 3*60*1000 ) { //3min timeout
//				closeConnectionInternally( "timed out while waiting for handshake" );
//				return true;
//			}
//		}
//
//		return false;
//	}
//
//
//
//	public void doPerformanceTuningCheck() {
//		Transport	transport = connection.getTransport();
//
//		if( transport != null && peer_stats != null && outgoing_piece_message_handler != null ) {
//
//			//send speed -based tuning
//			final long send_rate = peer_stats.getDataSendRate() + peer_stats.getProtocolSendRate();
//
//			if( send_rate >= 3125000 ) {  // 25 Mbit/s
//				transport.setTransportMode( Transport.TRANSPORT_MODE_TURBO );
//				outgoing_piece_message_handler.setRequestReadAhead( 256 );
//			}
//			else if( send_rate >= 1250000 ) {  // 10 Mbit/s
//				transport.setTransportMode( Transport.TRANSPORT_MODE_TURBO );
//				outgoing_piece_message_handler.setRequestReadAhead( 128 );
//			}
//			else if( send_rate >= 125000 ) {  // 1 Mbit/s
//				if( transport.getTransportMode() < Transport.TRANSPORT_MODE_FAST ) {
//					transport.setTransportMode( Transport.TRANSPORT_MODE_FAST );
//				}
//				outgoing_piece_message_handler.setRequestReadAhead( 32 );
//			}
//			else if( send_rate >= 62500 ) {  // 500 Kbit/s
//				outgoing_piece_message_handler.setRequestReadAhead( 16 );
//			}
//			else if( send_rate >= 31250 ) {  // 250 Kbit/s
//				outgoing_piece_message_handler.setRequestReadAhead( 8 );
//			}
//			else if( send_rate >= 12500 ) {  // 100 Kbit/s
//				outgoing_piece_message_handler.setRequestReadAhead( 4 );
//			}
//			else {
//				outgoing_piece_message_handler.setRequestReadAhead( 2 );
//			}
//
//
//			//receive speed -based tuning
//			final long receive_rate = peer_stats.getDataReceiveRate() + peer_stats.getProtocolReceiveRate();
//
//			if( receive_rate >= 1250000 ) {  // 10 Mbit/s
//				transport.setTransportMode( Transport.TRANSPORT_MODE_TURBO );
//			}
//			else if( receive_rate >= 125000 ) {  // 1 Mbit/s
//				if( transport.getTransportMode() < Transport.TRANSPORT_MODE_FAST ) {
//					transport.setTransportMode( Transport.TRANSPORT_MODE_FAST );
//				}
//			}
//
//		}
//	}
//
//
//
//
//	public int getConnectionState() {  return connection_state;  }
//
//
//
//
//	public long getTimeSinceLastDataMessageReceived() {
//		if( last_data_message_received_time == -1 ) {  //never received
//			return -1;
//		}
//
//		final long now =SystemTime.getCurrentTime();
//
//		if (last_data_message_received_time >now)
//			last_data_message_received_time =now;   //time went backwards
//		return now -last_data_message_received_time;
//	}
//
//	public long getTimeSinceGoodDataReceived()
//	{
//		if (last_good_data_time ==-1)
//			return -1;	// never received
//		final long now =SystemTime.getCurrentTime();
//		if (last_good_data_time >now)
//			last_good_data_time =now;   //time went backwards
//		return now -last_good_data_time;
//	}
//
//
//	public long getTimeSinceLastDataMessageSent() {
//		if( last_data_message_sent_time == -1 ) {  //never sent
//			return -1;
//		}
//		final long now =SystemTime.getCurrentTime();
//		if (last_data_message_sent_time >now)
//			last_data_message_sent_time =now;   //time went backwards
//		return now -last_data_message_sent_time;
//	}
//
//
//
//
//
//	public long getTimeSinceConnectionEstablished() {
//		if( connection_established_time == 0 ) {  //fudge it while the transport is being connected
//			return 0;
//		}
//		final long now =SystemTime.getCurrentTime();
//		if (connection_established_time >now)
//			connection_established_time =now;
//		return now -connection_established_time;
//	}
//
//	public int
//	getConsecutiveNoRequestCount()
//	{
//		return( consecutive_no_request_count );
//	}
//
//	public void
//	setConsecutiveNoRequestCount(
//			int num )
//	{
//		consecutive_no_request_count	= num;
//	}
//
//	protected void decodeBTHandshake( BTHandshake handshake ) {
//
//		if (Logger.isEnabled())
//		    Logger.log(new LogEvent(this, LOGID,
//		    		"Received handshake with reserved bytes: " +
//		    			ByteFormatter.nicePrint(handshake.getReserved(), false)));
//
//		PeerIdentityDataID  my_peer_data_id = manager.getPeerIdentityDataID();
//
//		if(getConnectionState() == CONNECTION_FULLY_ESTABLISHED)
//		{
//			handshake.destroy();
//			closeConnectionInternally("peer sent another handshake after the initial connect");
//		}
//
//		if( !Arrays.equals( manager.getHash(), handshake.getDataHash() ) ) {
//			closeConnectionInternally( "handshake has wrong infohash" );
//			handshake.destroy();
//			return;
//		}
//
//		peer_id = handshake.getPeerId();
//
//		// Decode a client identification string from the given peerID
//		this.client_peer_id = this.client = StringInterner.intern(PeerClassifier.getClientDescription( peer_id ));
//
//		//make sure the client type is not banned
//		if( !PeerClassifier.isClientTypeAllowed( client ) ) {
//			closeConnectionInternally( client+ " client type not allowed to connect, banned" );
//			handshake.destroy();
//			return;
//		}
//
//		//make sure we are not connected to ourselves
//		if( Arrays.equals( manager.getPeerId(), peer_id ) ) {
//			manager.peerVerifiedAsSelf( this );  //make sure we dont do it again
//			closeConnectionInternally( "given peer id matches myself" );
//			handshake.destroy();
//			return;
//		}
//
//		//make sure we are not already connected to this peer
//		boolean sameIdentity = PeerIdentityManager.containsIdentity( my_peer_data_id, peer_id, getPort());
//		boolean sameIP = false;
//
//
//		//allow loopback connects for co-located proxy-based connections and testing
//		boolean same_allowed = COConfigurationManager.getBooleanParameter( "Allow Same IP Peers" ) || ip.equals( "127.0.0.1" );
//		if( !same_allowed ){
//			if( PeerIdentityManager.containsIPAddress( my_peer_data_id, ip )) {
//				sameIP = true;
//			}
//		}
//
//		if( sameIdentity ) {
//			boolean close = true;
//
//			if( connection.isLANLocal() ) {   //this new connection is lan-local
//
//				PEPeerTransport existing = manager.getTransportFromIdentity( peer_id );
//
//				if( existing != null ){
//
//					String	existing_ip = existing.getIp();
//
//					// normally we don't allow a lan-local to replace a lan-local connection. There is
//					// however one exception - where the existing connection comes from the gateway address
//					// and therefore actually denotes an effectively non-lan-local connection. Unfortunately
//					// we don't have a good way of finding the default gateway, so just go for ending in .1
//
//					if ( 	!existing.isLANLocal() ||
//							( existing_ip.endsWith( ".1" ) && !existing_ip.equals( ip ))) {  //so drop the existing connection if it is an external (non lan-local) one
//
//						Debug.outNoStack( "Dropping existing non-lanlocal peer connection [" +existing+ "] in favour of [" + this + "]" );
//						manager.removePeer( existing );
//						close = false;
//					}
//				}
//			}
//
//			if( close ) {
//				closeConnectionInternally( "peer matches already-connected peer id" );
//				handshake.destroy();
//				return;
//			}
//		}
//
//		if( sameIP ) {
//			closeConnectionInternally( "peer matches already-connected IP address, duplicate connections not allowed" );
//			handshake.destroy();
//			return;
//		}
//
//		//make sure we haven't reached our connection limit
//		final int maxAllowed = manager.getMaxNewConnectionsAllowed();
//		if (	 maxAllowed ==0 &&
//				!manager.doOptimisticDisconnect( isLANLocal(), isPriorityConnection()))
//		{
//			final String msg = "too many existing peer connections [p" +
//			PeerIdentityManager.getIdentityCount( my_peer_data_id )
//			+"/g" +PeerIdentityManager.getTotalIdentityCount()
//			+", pmx" +PeerUtils.MAX_CONNECTIONS_PER_TORRENT+ "/gmx"
//			+PeerUtils.MAX_CONNECTIONS_TOTAL+"/dmx" + manager.getMaxConnections()+ "]";
//			//System.out.println( msg );
//			closeConnectionInternally( msg );
//			handshake.destroy();
//			return;
//		}
//
//		try{
//			closing_mon.enter();
//
//			if( closing ){
//
//				final String msg = "connection already closing";
//
//				closeConnectionInternally( msg );
//
//				handshake.destroy();
//
//				return;
//			}
//
//			if ( !PeerIdentityManager.addIdentity( my_peer_data_id, peer_id, getPort(), ip )){
//
//				closeConnectionInternally( "peer matches already-connected peer id" );
//
//				handshake.destroy();
//
//				return;
//			}
//
//			identityAdded = true;
//
//		}finally{
//
//			closing_mon.exit();
//		}
//
//		if (Logger.isEnabled())
//			Logger.log(new LogEvent(this, LOGID, "In: has sent their handshake"));
//
//		// Let's store the reserved bits somewhere so they can be examined later (externally).
//		handshake_reserved_bytes = handshake.getReserved();
//
//		/*
//		 * Waiting until we've received the initiating-end's full handshake, before sending back our own,
//		 * really should be the "proper" behavior.  However, classic BT trackers running NAT checking will
//		 * only send the first 48 bytes (up to infohash) of the peer handshake, skipping peerid, which means
//		 * we'll never get their complete handshake, and thus never reply, which causes the NAT check to fail.
//		 * So, we need to send our handshake earlier, after we've verified the infohash.
//		 *
//      if( incoming ) {  //wait until we've received their handshake before sending ours
//        sendBTHandshake();
//      }
//		 */
//
//		this.ml_dht_enabled = (handshake_reserved_bytes[7] & 1) == 1;
//		messaging_mode = decideExtensionProtocol(handshake);
//
//		//extended protocol processing
//		if (messaging_mode == MESSAGING_AZMP) {
//			/**
//			 * We log when a non-Azureus client claims to support extended messaging...
//			 * Obviously other Azureus clients do, so there's no point logging about them!
//			 */
//			if (Logger.isEnabled() && client.indexOf("Azureus") == -1) {
//				Logger.log(new LogEvent(this, LOGID, "Handshake claims extended AZ "
//						+ "messaging support... enabling AZ mode."));
//			}
//
//			// Ignore the handshake setting - wait for the AZHandshake to indicate
//			// support instead.
//			this.ml_dht_enabled = false;
//
//			Transport transport = connection.getTransport();
//			boolean enable_padding = transport.isTCP() && transport.isEncrypted();
//			connection.getIncomingMessageQueue().setDecoder(new AZMessageDecoder());
//			connection.getOutgoingMessageQueue().setEncoder(new AZMessageEncoder(enable_padding));
//
//			// We will wait until we get the Az handshake before considering the connection
//			// initialised.
//			this.sendAZHandshake();
//			handshake.destroy();
//		}
//		else if (messaging_mode == MESSAGING_LTEP) {
//			if (Logger.isEnabled()) {
//				Logger.log(new LogEvent(this, LOGID, "Enabling LT extension protocol support..."));
//			}
//
//			connection.getIncomingMessageQueue().setDecoder(new LTMessageDecoder());
//			connection.getOutgoingMessageQueue().setEncoder(new LTMessageEncoder(this));
//
//			generateSessionId();
//
//			/**
//			 * We don't need to wait for the LT handshake, nor do we require it, nor
//			 * does it matter if the LT handshake comes later, nor does it matter if
//			 * it we receive it repeatedly. So there - we can initialise the connection
//			 * right now. :P
//			 */
//			this.initPostConnection(handshake);
//			this.sendLTHandshake();
//		}
//		else {
//			this.client = ClientIdentifier.identifyBTOnly(this.client_peer_id, this.handshake_reserved_bytes);
//
//			connection.getIncomingMessageQueue().getDecoder().resumeDecoding();
//
//			this.initPostConnection(handshake);
//		}
//
//	}
//
//	private int decideExtensionProtocol(BTHandshake handshake) {
//		boolean supports_azmp = (handshake.getReserved()[0] & 128) == 128;
//		boolean supports_ltep = (handshake.getReserved()[5] & 16) == 16;
//
//		if (!supports_azmp) {
//			if (supports_ltep) {
//				if (!manager.isExtendedMessagingEnabled()) {
//					if (Logger.isEnabled()) {
//						Logger.log(new LogEvent(this, LOGID, "Ignoring peer's LT extension protocol support,"
//								+ " as disabled for this download."));
//					}
//					return MESSAGING_BT_ONLY; // LTEP is supported, but disabled.
//				}
//				return MESSAGING_LTEP; // LTEP is supported.
//			}
//			return MESSAGING_BT_ONLY; // LTEP isn't supported.
//		}
//
//		if (!supports_ltep) {
//
//			// Check if it is AZMP enabled.
//			if(!manager.isExtendedMessagingEnabled()) {
//				if (Logger.isEnabled())
//					Logger.log(new LogEvent(this, LOGID, "Ignoring peer's extended AZ messaging support,"
//							+ " as disabled for this download."));
//				return MESSAGING_BT_ONLY;
//			}
//
//			// Check if the client is misbehaving...
//			else if( client.indexOf( "Plus!" ) != -1) {
//				if (Logger.isEnabled())
//					Logger.log(new LogEvent(this, LOGID, "Handshake mistakingly indicates"
//							+ " extended AZ messaging support...ignoring."));
//				return MESSAGING_BT_ONLY;
//			}
//
//			return MESSAGING_AZMP;
//		}
//
//		boolean enp_major_bit = (handshake.getReserved()[5] & 2) == 2;
//		boolean enp_minor_bit = (handshake.getReserved()[5] & 1) == 1;
//
//		// Only enable one of the blocks below.
//		String their_ext_preference = ((enp_major_bit == enp_minor_bit) ? "Force " : "Prefer ") + ((enp_major_bit) ? "AZMP" : "LTEP");
//
//		// Force AZMP block.
//		String our_ext_preference = "Force AZMP";
//		boolean use_azmp = enp_major_bit || enp_minor_bit; // Anything other than Force LTEP, then we force AZMP to be used.
//		boolean we_decide = use_azmp;
//
//		// Prefer AZMP block (untested).
//		/*
//		String our_ext_preference = "Prefer AZMP";
//		boolean use_azmp = enp_major_bit; // Requires other client to prefer or force AZMP.
//		boolean we_decide = use_azmp && !enp_minor_bit; // We decide only if we are using AZMP and the other client didn't force it.
//		*/
//
//		// Prefer LTEP block (untested).
//		/*
//		String our_ext_preference = "Prefer LTEP";
//		boolean use_azmp = enp_major_bit && enp_minor_bit; // Only use it Force AZMP is enabled.
//		boolean we_decide = enp_minor_bit && !use_azmp; // We decide only if we are using LTEP and the other client didn't force it.
//		*/
//
//		if (Logger.isEnabled()) {
//			String msg = "Peer supports both AZMP and LTEP: ";
//			msg += "\"" + our_ext_preference + "\"" + (we_decide ? ">" : "<") + ((our_ext_preference.equals(their_ext_preference)) ? "= " : " ");
//			msg += "\"" + their_ext_preference + "\" - using " + (use_azmp ? "AZMP" : "LTEP");
//			Logger.log(new LogEvent(this, LOGID, msg));
//		}
//
//		return (use_azmp) ? MESSAGING_AZMP : MESSAGING_LTEP;
//
//	}
//
//
//  protected void decodeLTHandshake(LTHandshake handshake) {
//	  String lt_handshake_name = handshake.getClientName();
//	  if (lt_handshake_name != null) {
//		  this.client_handshake = StringInterner.intern(lt_handshake_name);
//		  this.client = StringInterner.intern(ClientIdentifier.identifyLTEP(this.client_peer_id, this.client_handshake, this.peer_id));
//	  }
//	  if(handshake.getTCPListeningPort() > 0 )
//	  {
//		  // Only use crypto if it was specifically requested. Not sure what the default
//		  // should be if they haven't indicated...
//		  Boolean crypto_requested = handshake.isCryptoRequested();
//		  byte handshake_type = (crypto_requested != null && crypto_requested.booleanValue()) ? PeerItemFactory.HANDSHAKE_TYPE_CRYPTO : PeerItemFactory.HANDSHAKE_TYPE_PLAIN;
//		  tcp_listen_port = handshake.getTCPListeningPort();
//		  peer_item_identity = PeerItemFactory.createPeerItem(
//			  ip, tcp_listen_port,
//			  PeerItem.convertSourceID(peer_source),
//			  handshake_type,
//			  udp_listen_port, // probably none
//			  crypto_level,
//			  0
//			  );
//	  }
//
//	  if(handshake.isUploadOnly())
//	  {
//		  relativeSeeding |= RELATIVE_SEEDING_UPLOAD_ONLY_INDICATED;
//		  checkSeed();
//	  }
//
//	  if(AddressUtils.isGlobalAddressV6(handshake.getIPv6()))
//		  alternativeAddress = handshake.getIPv6();
//
//
//
//	  LTMessageEncoder encoder = (LTMessageEncoder)connection.getOutgoingMessageQueue().getEncoder();
//	  encoder.updateSupportedExtensions(handshake.getExtensionMapping());
//	  this.ut_pex_enabled = UTPeerExchange.ENABLED && encoder.supportsUTPEX();
//
//	  /**
//	   * Grr... this is one thing which I'm sure I had figured out much better than it is here...
//	   * Basically, we "initialise" the connection at the BT handshake stage, because the LT handshake
//	   * is mandatory or required to come first (unlike the AZ one).
//	   *
//	   * But when we receive an LT handshake, we have to "initialise" it like we did previously, because
//	   * we may have to set the internals up to indicate if PEX is supported.
//	   *
//	   * I'm not entirely sure this method is meant to be called more than once, and I'm less convinced
//	   * that it's safe to do it repeatedly over the lifetime of a properly-initialised, actually-doing-stuff
//	   * connection... but I'll worry about that later.
//	   */
//	  this.doPostHandshakeProcessing();
//
//	  handshake.destroy();
//  }
//
//  protected void decodeAZHandshake(AZHandshake handshake) {
//	  if(getConnectionState() == CONNECTION_FULLY_ESTABLISHED)
//	  {
//		  handshake.destroy();
//		  closeConnectionInternally("peer sent another az-handshake after the intial connect");
//	  }
//
//		this.client_handshake = StringInterner.intern(handshake.getClient());
//		this.client_handshake_version = StringInterner.intern(handshake.getClientVersion());
//		this.client = StringInterner.intern(ClientIdentifier.identifyAZMP(this.client_peer_id, client_handshake, client_handshake_version, this.peer_id));
//
//		if (handshake.getTCPListenPort() > 0)
//		{ // use the ports given in handshake
//			tcp_listen_port = handshake.getTCPListenPort();
//			udp_listen_port = handshake.getUDPListenPort();
//			udp_non_data_port = handshake.getUDPNonDataListenPort();
//			final byte type = handshake.getHandshakeType() == AZHandshake.HANDSHAKE_TYPE_CRYPTO ? PeerItemFactory.HANDSHAKE_TYPE_CRYPTO : PeerItemFactory.HANDSHAKE_TYPE_PLAIN;
//
//			// remake the id using the peer's remote listen port instead of
//			// their random local port
//			peer_item_identity = PeerItemFactory.createPeerItem(ip, tcp_listen_port, PeerItem.convertSourceID(peer_source), type, udp_listen_port, crypto_level, 0);
//		}
//
//		if(AddressUtils.isGlobalAddressV6(handshake.getIPv6()))
//			alternativeAddress = handshake.getIPv6();
//
//
//		if(handshake.getReconnectSessionID() != null)
//		{
//			if (Logger.isEnabled()) {
//				Logger.log(new LogEvent(this, LOGID, LogEvent.LT_INFORMATION, "received reconnect request ID: "+handshake.getReconnectSessionID().toBase32String()));
//			}
//			checkForReconnect(handshake.getReconnectSessionID());
//		}
//
//		if(handshake.getRemoteSessionID() != null)
//			peerSessionID = handshake.getRemoteSessionID();
//
//		if (handshake.isUploadOnly())
//		{
//			relativeSeeding |= RELATIVE_SEEDING_UPLOAD_ONLY_INDICATED;
//			checkSeed();
//		}
//
//
//		String[] supported_message_ids = handshake.getMessageIDs();
//		byte[] supported_message_versions = handshake.getMessageVersions();
//
//		//find mutually available message types
//		final ArrayList messages = new ArrayList();
//
//		for (int i = 0; i < handshake.getMessageIDs().length; i++)
//		{
//			Message msg = MessageManager.getSingleton().lookupMessage(supported_message_ids[i]);
//			if (msg != null)
//			{ // mutual support!
//				messages.add(msg);
//
//				String id = msg.getID();
//				byte supported_version = supported_message_versions[i];
//
//				// we can use == safely
//				if (id == BTMessage.ID_BT_BITFIELD)
//					other_peer_bitfield_version = supported_version;
//				else if (id == BTMessage.ID_BT_CANCEL)
//					other_peer_cancel_version = supported_version;
//				else if (id == BTMessage.ID_BT_CHOKE)
//					other_peer_choke_version = supported_version;
//				else if (id == BTMessage.ID_BT_HANDSHAKE)
//					other_peer_handshake_version = supported_version;
//				else if (id == BTMessage.ID_BT_HAVE)
//					other_peer_bt_have_version = supported_version;
//				else if (id == BTMessage.ID_BT_INTERESTED)
//					other_peer_interested_version = supported_version;
//				else if (id == BTMessage.ID_BT_KEEP_ALIVE)
//					other_peer_keep_alive_version = supported_version;
//				else if (id == BTMessage.ID_BT_PIECE)
//					other_peer_piece_version = supported_version;
//				else if (id == BTMessage.ID_BT_UNCHOKE)
//					other_peer_unchoke_version = supported_version;
//				else if (id == BTMessage.ID_BT_UNINTERESTED)
//					other_peer_uninterested_version = supported_version;
//				else if (id == BTMessage.ID_BT_REQUEST)
//					other_peer_request_version = supported_version;
//				else if (id == AZMessage.ID_AZ_PEER_EXCHANGE)
//					other_peer_pex_version = supported_version;
//				else if (id == AZMessage.ID_AZ_REQUEST_HINT)
//					other_peer_az_request_hint_version = supported_version;
//				else if (id == AZMessage.ID_AZ_HAVE)
//					other_peer_az_have_version = supported_version;
//				else if (id == AZMessage.ID_AZ_BAD_PIECE)
//					other_peer_az_bad_piece_version = supported_version;
//				else if (id == BTMessage.ID_BT_DHT_PORT)
//					this.ml_dht_enabled = true;
//				else
//				{
//					// we expect unmatched ones here at the moment as we're not
//					// dealing with them yet or they don't make sense.
//					// for example AZVER
//				}
//			}
//		}
//
//		supported_messages = (Message[]) messages.toArray(new Message[messages.size()]);
//
//		if(outgoing_piece_message_handler != null){
//			outgoing_piece_message_handler.setPieceVersion(other_peer_piece_version);
//		}
//
//		if ( outgoing_have_message_aggregator != null ){
//			outgoing_have_message_aggregator.setHaveVersion(other_peer_bt_have_version, other_peer_az_have_version);
//		}
//
//		this.initPostConnection(handshake);
//	}
//
//  	private void initPostConnection(Message handshake) {
//		changePeerState(PEPeer.TRANSFERING);
//		connection_state = PEPeerTransport.CONNECTION_FULLY_ESTABLISHED;
//		sendBitField();
//		handshake.destroy();
//		addAvailability();
//		sendMainlineDHTPort();
//  	}
//
//
//	protected void decodeBitfield( BTBitfield bitfield )
//	{
//		received_bitfield = true;
//
//		final DirectByteBuffer field =bitfield.getBitfield();
//
//		final byte[] dataf =new byte[(nbPieces +7) /8];
//
//		if( field.remaining( DirectByteBuffer.SS_PEER ) < dataf.length ) {
//			final String error = toString() + " has sent invalid Bitfield: too short [" +field.remaining( DirectByteBuffer.SS_PEER )+ "<" +dataf.length+ "]";
//			Debug.out( error );
//			if (Logger.isEnabled())
//				Logger.log(new LogEvent(this, LOGID, LogEvent.LT_ERROR, error ));
//			bitfield.destroy();
//			return;
//		}
//
//		field.get( DirectByteBuffer.SS_PEER, dataf );
//
//		try{
//			closing_mon.enter();
//			if (closing)
//				bitfield.destroy();
//			else
//			{
//				final BitFlags tempHavePieces;
//				if (peerHavePieces ==null)
//				{
//					tempHavePieces =new BitFlags(nbPieces);
//				} else
//				{
//					tempHavePieces =peerHavePieces;
//					removeAvailability();
//				}
//				for (int i =0; i <nbPieces; i++)
//				{
//					final int index =i /8;
//					final int bit =7 -(i %8);
//					final byte bData =dataf[index];
//					final byte b =(byte) (bData >>bit);
//					if ((b &0x01) ==1)
//					{
//						tempHavePieces.set(i);
//						manager.updateSuperSeedPiece(this,i);
//					}
//				}
//
//				bitfield.destroy();
//
//				peerHavePieces =tempHavePieces;
//				addAvailability();
//
//				checkSeed();
//				checkInterested();
//			}
//		}
//		finally{
//			closing_mon.exit();
//		}
//	}
//
//	protected void decodeMainlineDHTPort(BTDHTPort port) {
//		int i_port = port.getDHTPort();
//		port.destroy();
//
//		if (!this.ml_dht_enabled) {return;}
//		MainlineDHTProvider provider = getDHTProvider();
//		if (provider == null) {return;}
//
//		try {provider.notifyOfIncomingPort(getIp(), i_port);}
//		catch (Throwable t) {Debug.printStackTrace(t);}
//	}
//
//	protected void decodeChoke( BTChoke choke ) {
//		choke.destroy();
//		if (!choked_by_other_peer)
//		{
//			choked_by_other_peer = true;
//			cancelRequests();
//			final long unchoked =SystemTime.getCurrentTime() -unchokedTime;
//			if (unchoked >0 &&!isSnubbed())
//				unchokedTimeTotal +=unchoked;
//		}
//	}
//
//
//	protected void decodeUnchoke( BTUnchoke unchoke ) {
//		unchoke.destroy();
//		if (choked_by_other_peer)
//		{
//			choked_by_other_peer = false;
//			if (!isSnubbed())
//				unchokedTime =SystemTime.getCurrentTime();
//		}
//	}
//
//
//	protected void
//	decodeInterested(
//		BTInterested interested )
//	{
//		interested.destroy();
//
//			// Don't allow known seeds to be interested in us
//
//		other_peer_interested_in_me = !(isSeed() || isRelativeSeed());
//
//		if ( 	other_peer_interested_in_me &&
//				fast_unchoke_new_peers &&
//				isChokedByMe() &&
//				getData( "fast_unchoke_done" ) == null ){
//
//			setData( "fast_unchoke_done", "" );
//
//			sendUnChoke();
//		}
//	}
//
//
//	protected void decodeUninterested( BTUninterested uninterested ) {
//		uninterested.destroy();
//		other_peer_interested_in_me = false;
//
//		//force send any pending haves in case one of them would make the other peer interested again
//		if( outgoing_have_message_aggregator != null ) {
//			outgoing_have_message_aggregator.forceSendOfPending();
//		}
//
//	}
//
//
//
//
//	protected void decodeHave( BTHave have ) {
//		final int pieceNumber =have.getPieceNumber();
//		have.destroy();
//
//		if ((pieceNumber >=nbPieces) ||(pieceNumber <0)) {
//			closeConnectionInternally("invalid pieceNumber: " +pieceNumber);
//			return;
//		}
//
//		if (closing)
//			return;
//
//		if (peerHavePieces ==null)
//			peerHavePieces =new BitFlags(nbPieces);
//
//		if (!peerHavePieces.flags[pieceNumber])
//		{
//			if (!interested_in_other_peer &&diskManager.isInteresting(pieceNumber))
//			{
//                connection.getOutgoingMessageQueue().addMessage(new BTInterested(other_peer_interested_version), false);
//				interested_in_other_peer =true;
//			}
//			peerHavePieces.set(pieceNumber);
//
//			final int pieceLength =manager.getPieceLength(pieceNumber);
//			manager.havePiece(pieceNumber, pieceLength, this);
//
//			checkSeed(); // maybe a seed using lazy bitfield, or suddenly became a seed;
//			other_peer_interested_in_me &= !(isSeed() || isRelativeSeed());	// never consider seeds interested
//
//            peer_stats.hasNewPiece(pieceLength);
//        }
//    }
//
//    protected void
//    decodeAZHave(
//    	AZHave have )
//    {
//        final int[] pieceNumbers = have.getPieceNumbers();
//
//        have.destroy();
//
//        if ( closing ){
//
//            return;
//        }
//
//        if ( peerHavePieces == null ){
//
//            peerHavePieces = new BitFlags( nbPieces );
//        }
//
//        boolean	send_interested = false;
//        boolean	new_have		= false;
//
//        for (int i=0;i<pieceNumbers.length;i++){
//
//        	int pieceNumber = pieceNumbers[i];
//
//	        if ((pieceNumber >= nbPieces) ||(pieceNumber <0)) {
//
//	            closeConnectionInternally("invalid pieceNumber: " +pieceNumber);
//
//	            return;
//	        }
//
//	        if ( !peerHavePieces.flags[pieceNumber]){
//
//	        	new_have	= true;
//
//	            if (	!( send_interested || interested_in_other_peer ) &&
//	            		diskManager.isInteresting(pieceNumber)){
//
//	            	send_interested = true;
//	            }
//
//	            peerHavePieces.set(pieceNumber);
//
//	            final int pieceLength =manager.getPieceLength(pieceNumber);
//
//	            manager.havePiece(pieceNumber, pieceLength, this);
//
//	            peer_stats.hasNewPiece(pieceLength);
//	        }
//        }
//
//        if ( new_have ){
//
//            checkSeed(); // maybe a seed using lazy bitfield, or suddenly became a seed;
//
//            other_peer_interested_in_me &= !(isSeed() && isRelativeSeed());	// never consider seeds interested
//        }
//
//        if ( send_interested ){
//
//            connection.getOutgoingMessageQueue().addMessage(new BTInterested(other_peer_interested_version), false);
//
//            interested_in_other_peer = true;
//        }
//    }
//
//    protected long
//    getBytesDownloaded()
//    {
//		if (peerHavePieces ==null ||peerHavePieces.flags.length ==0)
//			return 0;
//
//		final long	total_done;
//
//		if ( peerHavePieces.flags[nbPieces-1] ){
//
//			total_done = ((long)(peerHavePieces.nbSet -1) *diskManager.getPieceLength()) +diskManager.getPieceLength( nbPieces -1 );
//
//		}else{
//
//			total_done =(long)peerHavePieces.nbSet *diskManager.getPieceLength();
//		}
//
//		return( Math.min( total_done, diskManager.getTotalLength()));
//    }
//
//    public long
//    getBytesRemaining()
//    {
//    	return( diskManager.getTotalLength() - getBytesDownloaded());
//    }
//
//    public void
//    sendBadPiece(
//  	  int		piece_number )
//    {
//  	  if ( bad_piece_supported ){
//
//  		  AZBadPiece	bp = new AZBadPiece( piece_number, other_peer_az_bad_piece_version );
//
//  		  connection.getOutgoingMessageQueue().addMessage( bp, false );
//        }
//    }
//    protected void
//    decodeAZBadPiece(
//    	AZBadPiece bad_piece )
//    {
//        final int piece_number = bad_piece.getPieceNumber();
//
//        bad_piece.destroy();
//
//        manager.badPieceReported( this, piece_number );
//    }
//
//
//	protected void decodeRequest( BTRequest request ) {
//		final int number = request.getPieceNumber();
//		final int offset = request.getPieceOffset();
//		final int length = request.getLength();
//		request.destroy();
//
//		if( !manager.validateReadRequest( this, number, offset, length ) ) {
//			closeConnectionInternally( "request for piece #" + number + ":" + offset + "->" + (offset + length -1) + " is an invalid request" );
//			return;
//		}
//
//		if ( manager.getHiddenPiece() == number ){
//			closeConnectionInternally( "request for piece #" + number + " is invalid as piece is hidden" );
//			return;
//		}
//
//		if( !choking_other_peer ) {
//			outgoing_piece_message_handler.addPieceRequest( number, offset, length );
//			allowReconnect = true;
//		}
//		else {
//			if (Logger.isEnabled())
//				Logger.log(new LogEvent(this, LOGID, "decodeRequest(): peer request for piece #"
//						+ number + ":" + offset + "->" + (offset + length -1)
//						+ " ignored as peer is currently choked."));
//		}
//	}
//
//
//
//	protected void decodePiece( BTPiece piece ) {
//		final int pieceNumber = piece.getPieceNumber();
//		final int offset = piece.getPieceOffset();
//		final DirectByteBuffer payload = piece.getPieceData();
//		final int length = payload.remaining( DirectByteBuffer.SS_PEER );
//
//		/*
//    if ( AEDiagnostics.CHECK_DUMMY_FILE_DATA ){
//      int pos = payload.position( DirectByteBuffer.SS_PEER );
//      long  off = ((long)number) * getControl().getPieceLength(0) + offset;
//      for (int i=0;i<length;i++){
//        byte  v = payload.get( DirectByteBuffer.SS_PEER );
//        if ((byte)off != v ){
//          System.out.println( "piece: read is bad at " + off + ": expected = " + (byte)off + ", actual = " + v );
//          break;
//        }
//        off++;
//      }
//      payload.position( DirectByteBuffer.SS_PEER, pos );
//    }
//		 */
//
//		final Object error_msg =
//			new Object()
//		{
//			public final String
//			toString()
//			{
//				return( "decodePiece(): Peer has sent piece #" + pieceNumber + ":" + offset + "->"	+ (offset + length -1) + ", " );
//			}
//		};
//
//	  if( !manager.validatePieceReply( this, pieceNumber, offset, payload ) ) {
//			peer_stats.bytesDiscarded( length );
//			manager.discarded( this, length );
//			requests_discarded++;
//			printRequestStats();
//			piece.destroy();
//			if (Logger.isEnabled())
//				Logger.log(new LogEvent(this, LOGID, LogEvent.LT_ERROR,
//						error_msg
//						+"but piece block discarded as invalid."));
//			return;
//		}
//
//		final DiskManagerReadRequest request = manager.createDiskManagerRequest( pieceNumber, offset, length );
//		boolean piece_error = true;
//
//		if( hasBeenRequested( request ) ) {  //from active request
//			removeRequest( request );
//			final long now =SystemTime.getCurrentTime();
//			resetRequestsTime(now);
//
//			if( manager.isWritten( pieceNumber, offset ) ) {  //oops, looks like this block has already been written
//				peer_stats.bytesDiscarded( length );
//				manager.discarded( this, length );
//
//				if( manager.isInEndGameMode() ) {  //we're probably in end-game mode then
//					if (last_good_data_time !=-1 &&now -last_good_data_time <=60 *1000)
//						setSnubbed(false);
//					last_good_data_time =now;
//					requests_discarded_endgame++;
//					if (Logger.isEnabled())
//						Logger.log(new LogEvent(this, LogIDs.PIECES, LogEvent.LT_INFORMATION,
//								error_msg
//								+"but piece block ignored as already written in end-game mode."));
//				}
//				else {
//					// if they're not snubbed, then most likely this peer got a re-request after some other peer
//					// snubbed themselves, and the slow peer finially finished the piece, but before this peer did
//					// so give credit to this peer anyway for having delivered a block at this time
//					if (!isSnubbed())
//						last_good_data_time =now;
//					if (Logger.isEnabled())
//						Logger.log(new LogEvent(this, LogIDs.PIECES, LogEvent.LT_WARNING,
//								error_msg
//								+"but piece block discarded as already written."));
//					requests_discarded++;
//				}
//
//				printRequestStats();
//			}
//			else {  //successfully received block!
//				manager.writeBlock( pieceNumber, offset, payload, this, false);
//				if (last_good_data_time !=-1 &&now -last_good_data_time <=60 *1000)
//					setSnubbed( false );
//				last_good_data_time =now;
//				requests_completed++;
//				piece_error = false;  //dont destroy message, as we've passed the payload on to the disk manager for writing
//			}
//		}
//		else {  //initial request may have already expired, but check if we can use the data anyway
//			if( !manager.isWritten( pieceNumber, offset ) ) {
//				final boolean ever_requested;
//
//				try{  recent_outgoing_requests_mon.enter();
//				ever_requested = recent_outgoing_requests.containsKey( request );
//				}
//				finally{  recent_outgoing_requests_mon.exit();  }
//
//				if( ever_requested ) { //security-measure: we dont want to be accepting any ol' random block
//					manager.writeBlock( pieceNumber, offset, payload, this, true);
//					final long now =SystemTime.getCurrentTime();
//					if (last_good_data_time !=-1 &&now -last_good_data_time <=60 *1000)
//						setSnubbed(false);
//					resetRequestsTime(now);
//					last_good_data_time =now;
//					requests_recovered++;
//					printRequestStats();
//					piece_error = false;  //dont destroy message, as we've passed the payload on to the disk manager for writing
//					if (Logger.isEnabled())
//						Logger.log(new LogEvent(this, LogIDs.PIECES, LogEvent.LT_INFORMATION,
//								error_msg
//								+"expired piece block data recovered as useful."));
//				}
//				else {
//
//					System.out.println( "[" +client+ "]" +error_msg + "but expired piece block discarded as never requested." );
//
//					peer_stats.bytesDiscarded( length );
//					manager.discarded( this, length );
//					requests_discarded++;
//					printRequestStats();
//					if (Logger.isEnabled())
//						Logger.log(new LogEvent(this, LogIDs.PIECES, LogEvent.LT_ERROR,
//								error_msg
//								+"but expired piece block discarded as never requested."));
//				}
//			}
//			else {
//				peer_stats.bytesDiscarded( length );
//				manager.discarded( this, length );
//				requests_discarded++;
//				printRequestStats();
//				if (Logger.isEnabled())
//					Logger.log(new LogEvent(this, LogIDs.PIECES, LogEvent.LT_WARNING,
//							error_msg
//							+"but expired piece block discarded as already written."));
//			}
//		}
//
//		if( piece_error )
//			piece.destroy();
//		else
//			allowReconnect = true;
//	}
//
//
//
//	protected void decodeCancel( BTCancel cancel ) {
//		int number = cancel.getPieceNumber();
//		int offset = cancel.getPieceOffset();
//		int length = cancel.getLength();
//		cancel.destroy();
//		if(outgoing_piece_message_handler != null)
//			outgoing_piece_message_handler.removePieceRequest( number, offset, length );
//	}
//
//
//
//	private void registerForMessageHandling() {
//
//		//INCOMING MESSAGES
//		connection.getIncomingMessageQueue().registerQueueListener( new IncomingMessageQueue.MessageQueueListener() {
//			public final boolean messageReceived( Message message ) {
//
//				if (Logger.isEnabled())
//					Logger.log(new LogEvent(PEPeerTransportProtocol.this, LogIDs.NET,
//							"Received [" + message.getDescription() + "] message"));
//				final long now =SystemTime.getCurrentTime();
//				last_message_received_time =now;
//				if( message.getType() == Message.TYPE_DATA_PAYLOAD ) {
//					last_data_message_received_time =now;
//				}
//
//        String	message_id = message.getID();
//
//        if( message_id.equals( BTMessage.ID_BT_PIECE ) ) {
//					decodePiece( (BTPiece)message );
//					return true;
//				}
//
//				if( closing ) {
//					message.destroy();
//					return true;
//				}
//
//        if(message_id.equals( BTMessage.ID_BT_KEEP_ALIVE ) ) {
//					message.destroy();
//
//					//make sure they're not spamming us
//					if( !message_limiter.countIncomingMessage( message.getID(), 6, 60*1000 ) ) {  //allow max 6 keep-alives per 60sec
//						System.out.println( manager.getDisplayName() + ": Incoming keep-alive message flood detected, dropping spamming peer connection." +PEPeerTransportProtocol.this );
//						closeConnectionInternally( "Incoming keep-alive message flood detected, dropping spamming peer connection." );
//					}
//
//					return true;
//				}
//
//
//        if( message_id.equals( BTMessage.ID_BT_HANDSHAKE ) ) {
//					decodeBTHandshake( (BTHandshake)message );
//					return true;
//				}
//
//        if( message_id.equals( AZMessage.ID_AZ_HANDSHAKE ) ) {
//					decodeAZHandshake( (AZHandshake)message );
//					return true;
//				}
//
//        if (message_id.equals(LTMessage.ID_LT_HANDSHAKE)) {
//        	decodeLTHandshake((LTHandshake)message);
//        	return true;
//        }
//
//        if( message_id.equals( BTMessage.ID_BT_BITFIELD ) ) {
//					decodeBitfield( (BTBitfield)message );
//					return true;
//				}
//
//        if( message_id.equals( BTMessage.ID_BT_CHOKE ) ) {
//					decodeChoke( (BTChoke)message );
//					if( choking_other_peer ) {
//						connection.enableEnhancedMessageProcessing( false, manager.getPartitionID());  //downgrade back to normal handler
//					}
//					return true;
//				}
//
//        if( message_id.equals( BTMessage.ID_BT_UNCHOKE ) ) {
//					decodeUnchoke( (BTUnchoke)message );
//					connection.enableEnhancedMessageProcessing( true, manager.getPartitionID() );  //make sure we use a fast handler for the resulting download
//					return true;
//				}
//
//        if( message_id.equals( BTMessage.ID_BT_INTERESTED ) ) {
//					decodeInterested( (BTInterested)message );
//					return true;
//				}
//
//        if( message_id.equals( BTMessage.ID_BT_UNINTERESTED ) ) {
//					decodeUninterested( (BTUninterested)message );
//					return true;
//				}
//
//        if( message_id.equals( BTMessage.ID_BT_HAVE ) ) {
//					decodeHave( (BTHave)message );
//					return true;
//				}
//
//        if( message_id.equals( BTMessage.ID_BT_REQUEST ) ) {
//					decodeRequest( (BTRequest)message );
//					return true;
//				}
//
//        if( message_id.equals( BTMessage.ID_BT_CANCEL ) ) {
//					decodeCancel( (BTCancel)message );
//					return true;
//				}
//
//        if (message_id.equals(BTMessage.ID_BT_DHT_PORT)) {
//        	decodeMainlineDHTPort((BTDHTPort)message);
//        	return true;
//        }
//
//        if( message_id.equals( AZMessage.ID_AZ_PEER_EXCHANGE ) ) {
//					decodePeerExchange( (AZPeerExchange)message );
//					return true;
//				}
//
//        if (message_id.equals(LTMessage.ID_UT_PEX)) {
//        	decodePeerExchange((UTPeerExchange)message);
//        	return true;
//        }
//
//        if( message_id.equals( AZMessage.ID_AZ_REQUEST_HINT ) ) {
//					decodeAZRequestHint( (AZRequestHint)message );
//            return true;
//        }
//
//        if( message_id.equals( AZMessage.ID_AZ_HAVE ) ) {
//            decodeAZHave((AZHave)message );
//            return true;
//        }
//
//        if( message_id.equals( AZMessage.ID_AZ_BAD_PIECE ) ) {
//            decodeAZBadPiece((AZBadPiece)message );
//					return true;
//				}
//				return false;
//			}
//
//			public final void protocolBytesReceived( int byte_count ) {
//				//update stats
//				peer_stats.protocolBytesReceived( byte_count );
//				manager.protocolBytesReceived( PEPeerTransportProtocol.this, byte_count );
//			}
//
//			public final void dataBytesReceived( int byte_count ) {
//				// Observe that the peer is sending data so that if theyre so slow that the whole
//				// data block times out, we don't think theyre not sending anything at all
//				last_data_message_received_time =SystemTime.getCurrentTime();
//
//				//update stats
//				peer_stats.dataBytesReceived( byte_count );
//
//				manager.dataBytesReceived( PEPeerTransportProtocol.this, byte_count );
//			}
//		});
//
//
//		//OUTGOING MESSAGES
//		connection.getOutgoingMessageQueue().registerQueueListener( new OutgoingMessageQueue.MessageQueueListener() {
//			public final boolean messageAdded( Message message ) {  return true;  }
//
//			public final void messageQueued( Message message ) { /* ignore */ }
//
//			public final void messageRemoved( Message message ) { /*ignore*/ }
//
//			public final void messageSent( Message message ) {
//				//update keep-alive info
//				final long now =SystemTime.getCurrentTime();
//				last_message_sent_time =now;
//
//				if( message.getType() == Message.TYPE_DATA_PAYLOAD ) {
//					last_data_message_sent_time =now;
//				}
//
//				if( message.getID().equals( BTMessage.ID_BT_UNCHOKE ) ) { // is about to send piece data
//					connection.enableEnhancedMessageProcessing( true, manager.getPartitionID() );  //so make sure we use a fast handler
//				}
//				else if( message.getID().equals( BTMessage.ID_BT_CHOKE ) ) { // is done sending piece data
//					if( choked_by_other_peer ) {
//						connection.enableEnhancedMessageProcessing( false, manager.getPartitionID() );  //so downgrade back to normal handler
//					}
//				}
//
//				if (Logger.isEnabled())
//					Logger.log(new LogEvent(PEPeerTransportProtocol.this, LogIDs.NET,
//							"Sent [" + message.getDescription() + "] message"));
//			}
//
//			public final void protocolBytesSent( int byte_count ) {
//				//update stats
//				peer_stats.protocolBytesSent( byte_count );
//				manager.protocolBytesSent( PEPeerTransportProtocol.this, byte_count );
//			}
//
//			public final void dataBytesSent( int byte_count ) {
//				//update stats
//				peer_stats.dataBytesSent( byte_count );
//				manager.dataBytesSent( PEPeerTransportProtocol.this, byte_count );
//			}
//			 public void flush(){}
//		});
//
//		//start message processing
//
//		connection.addRateLimiter( manager.getUploadLimitedRateGroup(), true );
//		connection.addRateLimiter(  manager.getDownloadLimitedRateGroup(), false );
//
//		connection.startMessageProcessing();
//	}
//
//	public void
//	addRateLimiter(
//			LimitedRateGroup	limiter,
//			boolean				upload )
//	{
//		connection.addRateLimiter( limiter, upload );
//	}
//
//	public void
//	removeRateLimiter(
//			LimitedRateGroup	limiter,
//			boolean				upload )
//	{
//		connection.removeRateLimiter( limiter, upload );
//	}
//
//	public Connection getPluginConnection() {
//		return plugin_connection;
//	}
//
//
//	public Message[] getSupportedMessages() {
//		return supported_messages;
//	}
//
//
//	public boolean supportsMessaging() {
//		return supported_messages != null;
//	}
//
//	public int getMessagingMode()
//	{
//		return messaging_mode;
//	}
//
//	public byte[] getHandshakeReservedBytes() {
//		return this.handshake_reserved_bytes;
//	}
//
//	public void
//	setHaveAggregationEnabled(
//			boolean		enabled )
//	{
//		have_aggregation_disabled	= !enabled;
//	}
//
//	public boolean
//	hasReceivedBitField()
//	{
//		return( received_bitfield );
//	}
//
//	public String
//	getEncryption()
//	{
//		Transport	transport = connection.getTransport();
//
//		if ( transport == null ){
//
//			return( "" );
//		}
//
//		return( transport.getEncryption( false ));
//	}
//
//	public void
//	addListener(
//			PEPeerListener listener )
//	{
//		try{
//			peer_listeners_mon.enter();
//
//			if( peer_listeners_cow == null ){
//
//				peer_listeners_cow = new ArrayList();
//			}
//
//			final List	new_listeners = new ArrayList( peer_listeners_cow );
//
//			new_listeners.add( listener );
//
//			peer_listeners_cow	= new_listeners;
//
//		}finally{
//
//			peer_listeners_mon.exit();
//		}
//	}
//
//	public void
//	removeListener(
//			PEPeerListener listener )
//	{
//		try{
//			peer_listeners_mon.enter();
//
//			if ( peer_listeners_cow != null ){
//
//				List	new_listeners = new ArrayList( peer_listeners_cow );
//
//				new_listeners.remove( listener );
//
//				if ( new_listeners.isEmpty()){
//
//					new_listeners	= null;
//				}
//
//				peer_listeners_cow	= new_listeners;
//			}
//		}finally{
//
//			peer_listeners_mon.exit();
//		}
//	}
//
//
//	private void changePeerState( int new_state ) {
//		current_peer_state = new_state;
//
//		if( current_peer_state == PEPeer.TRANSFERING ) {   //YUCK!
//			doPostHandshakeProcessing();
//		}
//
//		final List	peer_listeners_ref = peer_listeners_cow;
//
//		if ( peer_listeners_ref != null ){
//
//			for( int i=0; i < peer_listeners_ref.size(); i++ ) {
//
//				final PEPeerListener l = (PEPeerListener)peer_listeners_ref.get( i );
//
//				l.stateChanged(this, current_peer_state);
//			}
//		}
//	}
//
//
//
//
//	/**
//	 * this method might be called repeatedly since LTEP allows headers to be sent more than once
//	 * make sure that multiple invokations do not have unintended consequences
//	 */
//	private void doPostHandshakeProcessing() {
//		//peer exchange registration
//		if( manager.isPeerExchangeEnabled()) {
//			//try and register all connections for their peer exchange info
//			if(peer_exchange_item == null && canBePeerExchanged()){
//				peer_exchange_item = manager.createPeerExchangeConnection( this );
//			}
//
//			if( peer_exchange_item != null ) {
//				//check for peer exchange support
//				if(ut_pex_enabled || peerSupportsMessageType(AZMessage.ID_AZ_PEER_EXCHANGE)) {
//					peer_exchange_supported = true;
//				}
//				else {  //no need to maintain internal states as we wont be sending/receiving peer exchange messages
//					peer_exchange_item.disableStateMaintenance();
//				}
//			}
//		}
//
//		request_hint_supported = peerSupportsMessageType( AZMessage.ID_AZ_REQUEST_HINT );
//		bad_piece_supported 	= peerSupportsMessageType( AZMessage.ID_AZ_BAD_PIECE );
//	}
//
//	private boolean
//	canBePeerExchanged()
//	{
//		if ( client_peer_id != null ){
//
//				// disable the exchange of location targetted peers
//
//			boolean ok = !client_peer_id.startsWith( PeerClassifier.CACHE_LOGIC );
//
//			// System.out.println( "canPEX: " + client_peer_id + " -> " + ok );
//
//			return( ok );
//
//		}else{
//
//			Debug.out( "No client peer id!" );
//
//			return( false );
//		}
//	}
//
//	private boolean peerSupportsMessageType( String message_id ) {
//		if( supported_messages != null ) {
//			for( int i=0; i < supported_messages.length; i++ ) {
//				if( supported_messages[i].getID().equals( message_id ) )  return true;
//			}
//		}
//		return false;
//	}
//
//
//
//	public void updatePeerExchange() {
//		if ( current_peer_state != TRANSFERING ) return;
//		if( !peer_exchange_supported )  return;
//
//		if( peer_exchange_item != null && manager.isPeerExchangeEnabled()) {
//			final PeerItem[] adds = peer_exchange_item.getNewlyAddedPeerConnections();
//			final PeerItem[] drops = peer_exchange_item.getNewlyDroppedPeerConnections();
//
//			if( (adds != null && adds.length > 0) || (drops != null && drops.length > 0) ) {
//				if (ut_pex_enabled) {
//					connection.getOutgoingMessageQueue().addMessage( new UTPeerExchange(adds, drops, null, (byte)0), false);
//				}
//				else {
//					connection.getOutgoingMessageQueue().addMessage( new AZPeerExchange( manager.getHash(), adds, drops, other_peer_pex_version ), false );
//				}
//			}
//		}
//	}
//
//
//
//	protected void decodePeerExchange( AZStylePeerExchange exchange ) {
//
//		// if we're seeding ignore µT-PEXed seeds, Az won't send them in the first place
//		final PeerItem[] added = exchange instanceof UTPeerExchange ? ((UTPeerExchange)exchange).getAddedPeers(!manager.isSeeding()) : exchange.getAddedPeers();
//		final PeerItem[] dropped = exchange.getDroppedPeers();
//
//		//make sure they're not spamming us
//		if( !message_limiter.countIncomingMessage( exchange.getID(), 7, 120*1000 ) ) {  //allow max 7 PEX per 2min  //TODO reduce max after 2308 release?
//			System.out.println( manager.getDisplayName() + ": Incoming PEX message flood detected, dropping spamming peer connection." +PEPeerTransportProtocol.this );
//			closeConnectionInternally( "Incoming PEX message flood detected, dropping spamming peer connection." );
//			return;
//		}
//
//		exchange.destroy();
//
//    if(		( added != null   && added.length   > exchange.getMaxAllowedPeersPerVolley(!this.has_received_initial_pex, true)) ||
//    		( dropped != null && dropped.length > exchange.getMaxAllowedPeersPerVolley(!this.has_received_initial_pex, false))) {
//
//			//drop these too-large messages as they seem to be used for DOS by swarm poisoners
//   			closeConnectionInternally( "Invalid PEX message received: too large, dropping likely poisoner peer connection." );
//			return;
//		}
//
//    this.has_received_initial_pex = true;
//
//		if( peer_exchange_supported && peer_exchange_item != null && manager.isPeerExchangeEnabled()){
//			if( added != null ) {
//				for( int i=0; i < added.length; i++ ) {
//					PeerItem pi = added[i];
//					manager.peerDiscovered( this, pi );
//					peer_exchange_item.addConnectedPeer( pi );
//				}
//			}
//
//			if( dropped != null ) {
//				for( int i=0; i < dropped.length; i++ ) {
//					peer_exchange_item.dropConnectedPeer( dropped[i] );
//				}
//			}
//		}
//		else {
//			if (Logger.isEnabled())
//				Logger.log(new LogEvent(this, LOGID,
//						"Peer Exchange disabled for this download, "
//						+ "dropping received exchange message"));
//		}
//	}
//
//	public boolean
//	sendRequestHint(
//			int		piece_number,
//			int		offset,
//			int		length,
//			int		life )
//	{
//		if ( request_hint_supported ){
//
//		  AZRequestHint	rh = new AZRequestHint( piece_number, offset, length, life, other_peer_az_request_hint_version );
//
//			connection.getOutgoingMessageQueue().addMessage( rh, false );
//
//			return( true );
//
//		}else{
//
//			return( false );
//		}
//	}
//
//	protected void
//	decodeAZRequestHint(
//			AZRequestHint	hint )
//	{
//		int	piece_number 	= hint.getPieceNumber();
//		int	offset			= hint.getOffset();
//		int	length			= hint.getLength();
//		int	life			= hint.getLife();
//
//		hint.destroy();
//
//		if ( life > REQUEST_HINT_MAX_LIFE ){
//
//			life = REQUEST_HINT_MAX_LIFE;
//		}
//
//		if ( manager.validateHintRequest( this, piece_number, offset, length )){
//
//			if ( request_hint == null ){
//
//				// we ignore life time currently as once hinted we don't accept another hint
//				// until that one is satisfied. This is to prevent too many pieces starting
//
//				request_hint = new int[]{ piece_number, offset, length };
//			}
//		}
//	}
//
//	public int[]
//	           getRequestHint()
//	{
//		return( request_hint );
//	}
//
//	public void
//	clearRequestHint()
//	{
//		request_hint = null;
//	}
//
//	public PeerItem getPeerItemIdentity() {  return peer_item_identity;  }
//
//	public int getReservedPieceNumber() {
//		return reservedPiece;
//	}
//
//	public void setReservedPieceNumber(int pieceNumber) {
//		reservedPiece = pieceNumber;
//	}
//
//	public int
//	getIncomingRequestCount()
//	{
//		if ( outgoing_piece_message_handler == null ){
//			return( 0 );
//		}
//
//		return outgoing_piece_message_handler.getRequestCount();
//	}
//
//	public int
//	getOutgoingRequestCount()
//	{
//		return( getNbRequests());
//  }
//
//  public int
//  getOutboundDataQueueSize()
//  {
//	  return( connection.getOutgoingMessageQueue().getTotalSize());
//	}
//
//	public boolean
//	isStalledPendingLoad()
//	{
//		if ( outgoing_piece_message_handler == null ){
//
//			return( false );
//		}
//
//		return outgoing_piece_message_handler.isStalledPendingLoad();
//	}
//
//	public int[] getIncomingRequestedPieceNumbers() {
//		if ( outgoing_piece_message_handler == null ){
//			return( new int[0]);
//		}
//		return outgoing_piece_message_handler.getRequestedPieceNumbers();
//	}
//
//	public int[] getOutgoingRequestedPieceNumbers() {
//		try{
//			requested_mon.enter();
//
//			/** Cheap hack to reduce (but not remove all) the # of duplicate entries */
//			int iLastNumber = -1;
//
//			// allocate max size needed (we'll shrink it later)
//			final int[] pieceNumbers = new int[requested.size()];
//			int pos = 0;
//
//			for (int i = 0; i < requested.size(); i++) {
//				DiskManagerReadRequest request = null;
//				try {
//					request = (DiskManagerReadRequest) requested.get(i);
//				} catch (Exception e) {
//					Debug.printStackTrace(e);
//				}
//
//				if (request != null && iLastNumber != request.getPieceNumber()) {
//					iLastNumber = request.getPieceNumber();
//					pieceNumbers[pos++] = iLastNumber;
//				}
//			}
//
//			final int[] trimmed = new int[pos];
//			System.arraycopy(pieceNumbers, 0, trimmed, 0, pos);
//
//			return trimmed;
//
//		}finally{
//			requested_mon.exit();
//		}
//	}
//
//	public int
//	getPercentDoneOfCurrentIncomingRequest()
//	{
//		return( connection.getIncomingMessageQueue().getPercentDoneOfCurrentMessage());
//	}
//
//	public int
//	getPercentDoneOfCurrentOutgoingRequest()
//	{
//		return( connection.getOutgoingMessageQueue().getPercentDoneOfCurrentMessage());
//	}
//
//	/* (non-Javadoc)
//	 * @see org.gudy.azureus2.core3.logging.LogRelation#getLogRelationText()
//	 */
//	public String getRelationText() {
//		String text = "";
//		if (manager instanceof LogRelation)
//			text = ((LogRelation)manager).getRelationText() + "; ";
//		text += "Peer: " + toString();
//		return text;
//	}
//
//
//	/* (non-Javadoc)
//	 * @see org.gudy.azureus2.core3.logging.LogRelation#queryForClass(java.lang.Class)
//	 */
//	public Object[] getQueryableInterfaces() {
//		return new Object[] { manager };
//	}
//
//	public int getLastPiece()
//	{
//		return _lastPiece;
//	}
//
//	public void setLastPiece(int pieceNumber)
//	{
//		_lastPiece =pieceNumber;
//	}
//
//
//
//	public boolean isLANLocal() {
//		if( connection == null )  return( AddressUtils.isLANLocalAddress( ip ) == AddressUtils.LAN_LOCAL_YES );
//		return connection.isLANLocal();
//	}
//
//	public boolean
//	isTCP()
//	{
//		return( connection.getEndpoint().getProtocols()[0].getType() == ProtocolEndpoint.PROTOCOL_TCP );
//	}
//
//	public long getUnchokedTimeTotal()
//	{
//		if (choked_by_other_peer)
//			return unchokedTimeTotal;
//		return unchokedTimeTotal +(SystemTime.getCurrentTime() -unchokedTime);
//	}
//
//	public void setUploadRateLimitBytesPerSecond( int bytes ){ connection.setUploadLimit( bytes ); }
//	public void setDownloadRateLimitBytesPerSecond( int bytes ){ connection.setDownloadLimit( bytes ); }
//	public int getUploadRateLimitBytesPerSecond(){ return connection.getUploadLimit(); }
//	public int getDownloadRateLimitBytesPerSecond(){ return connection.getDownloadLimit(); }
//
//
//	public String getClientNameFromPeerID() {return this.client_peer_id;}
//	public String getClientNameFromExtensionHandshake() {
//		if (!this.client_handshake.equals("") && !this.client_handshake_version.equals("")) {
//			return this.client_handshake + " " + this.client_handshake_version;
//		}
//		return this.client_handshake;
//	}
//
//	private static MainlineDHTProvider getDHTProvider() {
//		return AzureusCoreImpl.getSingleton().getGlobalManager().getMainlineDHTProvider();
//	}
//
//	public void
//	setPriorityConnection(
//		boolean		is_priority )
//	{
//		synchronized( this ){
//
//			if ( priority_connection == is_priority ){
//
//				return;
//			}
//
//			priority_connection = is_priority;
//		}
//
//		manager.getAdapter().priorityConnectionChanged( is_priority );
//	}
//
//	public boolean
//	isPriorityConnection()
//	{
//		synchronized( this ){
//
//			return( priority_connection );
//		}
//	}
//
//	public void
//	generateEvidence(
//			IndentWriter	writer )
//	{
//		writer.println(
//				"ip=" + getIp() + ",in=" + isIncoming() + ",port=" + getPort() + ",cli=" + client + ",tcp=" + getTCPListenPort() + ",udp=" + getUDPListenPort() +
//				",oudp=" + getUDPNonDataListenPort() + ",p_state=" + getPeerState() + ",c_state=" + getConnectionState() + ",seed=" + isSeed() + "partialSeed=" + isRelativeSeed() + ",pex=" + peer_exchange_supported + ",closing=" + closing );
//		writer.println( "    choked=" + choked_by_other_peer + ",choking=" + choking_other_peer + ",unchoke_time=" + unchokedTime + ", unchoke_total=" + unchokedTimeTotal + ",is_opt=" + is_optimistic_unchoke );
//		writer.println( "    interested=" + interested_in_other_peer + ",interesting=" + other_peer_interested_in_me + ",snubbed=" + snubbed );
//		writer.println( "    lp=" + _lastPiece + ",up=" + uniquePiece + ",rp=" + reservedPiece );
//		writer.println(
//				"    last_sent=" + last_message_sent_time + "/" + last_data_message_sent_time +
//				",last_recv=" + last_message_received_time + "/" + last_data_message_received_time + "/" + last_good_data_time );
//		writer.println( "    conn_at=" + connection_established_time + ",cons_no_reqs=" + consecutive_no_request_count +
//				",discard=" + requests_discarded + "/" + requests_discarded_endgame + ",recov=" + requests_recovered + ",comp=" + requests_completed );
//
//	}
//
//	protected static class
//	MutableInteger
//	{
//		private int	value;
//
//		protected
//		MutableInteger(
//			int		v )
//		{
//			value = v;
//		}
//
//		protected void
//		setValue(
//			int	v )
//		{
//			value = v;
//		}
//
//		protected int
//		getValue()
//		{
//			return( value );
//		}
//
//		public int
//		hashCode()
//		{
//			return value;
//		}
//
//		public boolean
//		equals(
//			Object obj )
//		{
//			if (obj instanceof MutableInteger) {
//				return value == ((MutableInteger)obj).value;
//			}
//			return false;
//		}
//	}
//}